1002022101012 has 24 divisors (see below), whose sum is σ = 2338081057312. Its totient is φ = 334003154400.

The previous prime is 1002022100971. The next prime is 1002022101053. The reversal of 1002022101012 is 2101012202001.

It is an interprime number because it is at equal distance from previous prime (1002022100971) and next prime (1002022101053).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553062 + ... + 1519842.

Almost surely, 2^{1002022101012} is an apocalyptic number.

1002022101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002022101012 is an abundant number, since it is smaller than the sum of its proper divisors (1336058956300).

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

1002022101012 is a wasteful number, since it uses less digits than its factorization.

1002022101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053159 (or 1053157 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002022101012 its reverse (2101012202001), we get a palindrome (3103034303013).

The spelling of 1002022101012 in words is "one trillion, two billion, twenty-two million, one hundred one thousand, twelve".