1021021110112 has 24 divisors (see below), whose sum is σ = 2012583760992. Its totient is φ = 509888726400.

The previous prime is 1021021110041. The next prime is 1021021110113. The reversal of 1021021110112 is 2110111201201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1021021110092 and 1021021110101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021021110113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19405464 + ... + 19458007.

It is an arithmetic number, because the mean of its divisors is an integer number (83857656708).

Almost surely, 2^{1021021110112} is an apocalyptic number.

It is an amenable number.

1021021110112 is a deficient number, since it is larger than the sum of its proper divisors (991562650880).

1021021110112 is an equidigital number, since it uses as much as digits as its factorization.

1021021110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38864302 (or 38864294 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1021021110112 its reverse (2110111201201), we get a palindrome (3131132311313).

The spelling of 1021021110112 in words is "one trillion, twenty-one billion, twenty-one million, one hundred ten thousand, one hundred twelve".