1021012011210 has 32 divisors (see below), whose sum is σ = 2496663336960. Its totient is φ = 267132701888.

The previous prime is 1021012011181. The next prime is 1021012011223. The reversal of 1021012011210 is 121102101201.

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, 321071370 + ... + 321074549.

It is an arithmetic number, because the mean of its divisors is an integer number (78020729280).

Almost surely, 2^{1021012011210} is an apocalyptic number.

1021012011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021012011210 is an abundant number, since it is smaller than the sum of its proper divisors (1475651325750).

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

1021012011210 is a wasteful number, since it uses less digits than its factorization.

1021012011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642145982.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1021012011210 its reverse (121102101201), we get a palindrome (1142114112411).

The spelling of 1021012011210 in words is "one trillion, twenty-one billion, twelve million, eleven thousand, two hundred ten".