1012210112238 has 48 divisors (see below), whose sum is σ = 2234616344688. Its totient is φ = 303852902400.

The previous prime is 1012210112129. The next prime is 1012210112239. The reversal of 1012210112238 is 8322110122101.

It is a happy number.

It is a super-2 number, since 2×1012210112238² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012210112239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3728803 + ... + 3991038.

It is an arithmetic number, because the mean of its divisors is an integer number (46554507181).

Almost surely, 2^{1012210112238} is an apocalyptic number.

1012210112238 is an abundant number, since it is smaller than the sum of its proper divisors (1222406232450).

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

1012210112238 is a wasteful number, since it uses less digits than its factorization.

1012210112238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7719941 (or 7719900 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 1012210112238 its reverse (8322110122101), we get a palindrome (9334320234339).

The spelling of 1012210112238 in words is "one trillion, twelve billion, two hundred ten million, one hundred twelve thousand, two hundred thirty-eight".