1021022010987 has 32 divisors (see below), whose sum is σ = 1504199393280. Its totient is φ = 610855583520.

The previous prime is 1021022010977. The next prime is 1021022010997. The reversal of 1021022010987 is 7890102201201.

It is an interprime number because it is at equal distance from previous prime (1021022010977) and next prime (1021022010997).

It is not a de Polignac number, because 1021022010987 - 2⁴ = 1021022010971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1021022010917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15355948 + ... + 15422294.

It is an arithmetic number, because the mean of its divisors is an integer number (47006231040).

Almost surely, 2^{1021022010987} is an apocalyptic number.

1021022010987 is a deficient number, since it is larger than the sum of its proper divisors (483177382293).

1021022010987 is a wasteful number, since it uses less digits than its factorization.

1021022010987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72343.

The product of its (nonzero) digits is 4032, while the sum is 33.

The spelling of 1021022010987 in words is "one trillion, twenty-one billion, twenty-two million, ten thousand, nine hundred eighty-seven".