2211023142 has 40 divisors (see below), whose sum is σ = 4959259536. Its totient is φ = 736274448.

The previous prime is 2211023123. The next prime is 2211023153. The reversal of 2211023142 is 2413201122.

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 an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 170823 + ... + 183309.

Almost surely, 2^2211023142 is an apocalyptic number.

2211023142 is an abundant number, since it is smaller than the sum of its proper divisors (2748236394).

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

2211023142 is a wasteful number, since it uses less digits than its factorization.

2211023142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13594 (or 13585 counting only the distinct ones).

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

The square root of 2211023142 is about 47021.5178615068. The cubic root of 2211023142 is about 1302.7600417035.

Adding to 2211023142 its reverse (2413201122), we get a palindrome (4624224264).

The spelling of 2211023142 in words is "two billion, two hundred eleven million, twenty-three thousand, one hundred forty-two".