1021210102000 has 80 divisors (see below), whose sum is σ = 2693766632544. Its totient is φ = 371349120000.

The previous prime is 1021210101997. The next prime is 1021210102039. The reversal of 1021210102000 is 2010121201.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

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, 23187321 + ... + 23231320.

Almost surely, 2^{1021210102000} is an apocalyptic number.

1021210102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021210102000 is an abundant number, since it is smaller than the sum of its proper divisors (1672556530544).

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

1021210102000 is a wasteful number, since it uses less digits than its factorization.

1021210102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46418675 (or 46418659 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1021210102000 its reverse (2010121201), we get a palindrome (1023220223201).

The spelling of 1021210102000 in words is "one trillion, twenty-one billion, two hundred ten million, one hundred two thousand".