1021231022010 has 64 divisors (see below), whose sum is σ = 2458985472000. Its totient is φ = 271437406272.

The previous prime is 1021231021981. The next prime is 1021231022017. The reversal of 1021231022010 is 102201321201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1021231022017) 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, 11226691 + ... + 11317289.

It is an arithmetic number, because the mean of its divisors is an integer number (38421648000).

Almost surely, 2^{1021231022010} is an apocalyptic number.

1021231022010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021231022010 is an abundant number, since it is smaller than the sum of its proper divisors (1437754449990).

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

1021231022010 is a wasteful number, since it uses less digits than its factorization.

1021231022010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91835.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1021231022010 its reverse (102201321201), we get a palindrome (1123432343211).

The spelling of 1021231022010 in words is "one trillion, twenty-one billion, two hundred thirty-one million, twenty-two thousand, ten".