30212102 has 4 divisors (see below), whose sum is σ = 45318156. Its totient is φ = 15106050.

The previous prime is 30212093. The next prime is 30212129. The reversal of 30212102 is 20121203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20121203 = 151 ⋅133253.

It is a super-2 number, since 2×30212102² = 1825542214516808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7553024 + ... + 7553027.

It is an arithmetic number, because the mean of its divisors is an integer number (11329539).

Almost surely, 2^30212102 is an apocalyptic number.

30212102 is a deficient number, since it is larger than the sum of its proper divisors (15106054).

30212102 is a wasteful number, since it uses less digits than its factorization.

30212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15106053.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30212102 is about 5496.5536475140. The cubic root of 30212102 is about 311.4538096227.

Adding to 30212102 its reverse (20121203), we get a palindrome (50333305).

The spelling of 30212102 in words is "thirty million, two hundred twelve thousand, one hundred two".