1021022100010 has 64 divisors (see below), whose sum is σ = 2123364668544. Its totient is φ = 349356390400.

The previous prime is 1021022099987. The next prime is 1021022100017. The reversal of 1021022100010 is 100012201201.

It is a super-2 number, since 2×1021022100010² (a number of 25 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1021022100010.

It is not an unprimeable number, because it can be changed into a prime (1021022100017) 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, 7945470 + ... + 8072950.

It is an arithmetic number, because the mean of its divisors is an integer number (33177572946).

Almost surely, 2^{1021022100010} is an apocalyptic number.

1021022100010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021022100010 is an abundant number, since it is smaller than the sum of its proper divisors (1102342568534).

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

1021022100010 is a wasteful number, since it uses less digits than its factorization.

1021022100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131799.

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

Adding to 1021022100010 its reverse (100012201201), we get a palindrome (1121034301211).

The spelling of 1021022100010 in words is "one trillion, twenty-one billion, twenty-two million, one hundred thousand, ten".