1002021111112 has 64 divisors (see below), whose sum is σ = 2195004153600. Its totient is φ = 419955805440.

The previous prime is 1002021111073. The next prime is 1002021111127. The reversal of 1002021111112 is 2111111202001.

It is a happy number.

It is a super-2 number, since 2×1002021111112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1002021111092 and 1002021111101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256812 + ... + 1438747.

It is an arithmetic number, because the mean of its divisors is an integer number (34296939900).

Almost surely, 2^{1002021111112} is an apocalyptic number.

It is an amenable number.

1002021111112 is an abundant number, since it is smaller than the sum of its proper divisors (1192983042488).

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

1002021111112 is a wasteful number, since it uses less digits than its factorization.

1002021111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695806 (or 1695802 counting only the distinct ones).

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

Adding to 1002021111112 its reverse (2111111202001), we get a palindrome (3113132313113).

The spelling of 1002021111112 in words is "one trillion, two billion, twenty-one million, one hundred eleven thousand, one hundred twelve".