1010312121021 has 32 divisors (see below), whose sum is σ = 1620669557760. Its totient is φ = 546895794816.

The previous prime is 1010312120999. The next prime is 1010312121031. The reversal of 1010312121021 is 1201212130101.

It is not a de Polignac number, because 1010312121021 - 2⁵ = 1010312120989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010312121031) 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, 5830585 + ... + 6001361.

It is an arithmetic number, because the mean of its divisors is an integer number (50645923680).

Almost surely, 2^{1010312121021} is an apocalyptic number.

It is an amenable number.

1010312121021 is a deficient number, since it is larger than the sum of its proper divisors (610357436739).

1010312121021 is a wasteful number, since it uses less digits than its factorization.

1010312121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185633.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1010312121021 its reverse (1201212130101), we get a palindrome (2211524251122).

The spelling of 1010312121021 in words is "one trillion, ten billion, three hundred twelve million, one hundred twenty-one thousand, twenty-one".