101220020100010 has 128 divisors (see below), whose sum is σ = 223012549693440. Its totient is φ = 32330208153600.

The previous prime is 101220020099971. The next prime is 101220020100029. The reversal of 101220020100010 is 10001020022101.

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 101220020100010.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18820980 + ... + 23593840.

It is an arithmetic number, because the mean of its divisors is an integer number (1742285544480).

Almost surely, 2^{101220020100010} is an apocalyptic number.

101220020100010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101220020100010 is an abundant number, since it is smaller than the sum of its proper divisors (121792529593430).

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

101220020100010 is a wasteful number, since it uses less digits than its factorization.

101220020100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773272.

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

Adding to 101220020100010 its reverse (10001020022101), we get a palindrome (111221040122111).

The spelling of 101220020100010 in words is "one hundred one trillion, two hundred twenty billion, twenty million, one hundred thousand, ten".