1022012021112 has 96 divisors (see below), whose sum is σ = 2582296080000. Its totient is φ = 337072988736.

The previous prime is 1022012021033. The next prime is 1022012021117. The reversal of 1022012021112 is 2111202102201.

It is a junction number, because it is equal to n+sod(n) for n = 1022012021091 and 1022012021100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022012021117) 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, 292085139 + ... + 292088637.

It is an arithmetic number, because the mean of its divisors is an integer number (26898917500).

Almost surely, 2^{1022012021112} is an apocalyptic number.

1022012021112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022012021112 is an abundant number, since it is smaller than the sum of its proper divisors (1560284058888).

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

1022012021112 is a wasteful number, since it uses less digits than its factorization.

1022012021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4785 (or 4674 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1022012021112 its reverse (2111202102201), we get a palindrome (3133214123313).

The spelling of 1022012021112 in words is "one trillion, twenty-two billion, twelve million, twenty-one thousand, one hundred twelve".