1022002102020 has 48 divisors (see below), whose sum is σ = 2908517467968. Its totient is φ = 268066124160.

The previous prime is 1022002101919. The next prime is 1022002102027. The reversal of 1022002102020 is 202012002201.

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

It is a junction number, because it is equal to n+sod(n) for n = 1022002101987 and 1022002102005.

It is not an unprimeable number, because it can be changed into a prime (1022002102027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139614114 + ... + 139621433.

It is an arithmetic number, because the mean of its divisors is an integer number (60594113916).

Almost surely, 2^{1022002102020} is an apocalyptic number.

1022002102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022002102020 is an abundant number, since it is smaller than the sum of its proper divisors (1886515365948).

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

1022002102020 is a wasteful number, since it uses less digits than its factorization.

1022002102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279235620 (or 279235618 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1022002102020 its reverse (202012002201), we get a palindrome (1224014104221).

The spelling of 1022002102020 in words is "one trillion, twenty-two billion, two million, one hundred two thousand, twenty".