3021212142 has 64 divisors (see below), whose sum is σ = 7272336960. Its totient is φ = 924193152.

The previous prime is 3021212119. The next prime is 3021212143. The reversal of 3021212142 is 2412121203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3021212143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109008 + ... + 133884.

It is an arithmetic number, because the mean of its divisors is an integer number (113630265).

Almost surely, 2^3021212142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3021212142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3636168480).

3021212142 is an abundant number, since it is smaller than the sum of its proper divisors (4251124818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3021212142 is a wasteful number, since it uses less digits than its factorization.

3021212142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25074 (or 25068 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3021212142 is about 54965.5541407526. The cubic root of 3021212142 is about 1445.6408346781.

Adding to 3021212142 its reverse (2412121203), we get a palindrome (5433333345).

The spelling of 3021212142 in words is "three billion, twenty-one million, two hundred twelve thousand, one hundred forty-two".