1022012020100 has 36 divisors (see below), whose sum is σ = 2218176517200. Its totient is φ = 408729152160.

The previous prime is 1022012020087. The next prime is 1022012020109. The reversal of 1022012020100 is 10202102201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1022012020109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 401090 + ... + 1484889.

Almost surely, 2^{1022012020100} is an apocalyptic number.

1022012020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022012020100 is an abundant number, since it is smaller than the sum of its proper divisors (1196164497100).

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

1022012020100 is a wasteful number, since it uses less digits than its factorization.

1022012020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891412 (or 1891405 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1022012020100 its reverse (10202102201), we get a palindrome (1032214122301).

The spelling of 1022012020100 in words is "one trillion, twenty-two billion, twelve million, twenty thousand, one hundred".