101221201000010 has 128 divisors (see below), whose sum is σ = 230796329508864. Its totient is φ = 31112247640320.

The previous prime is 101221200999977. The next prime is 101221201000063. The reversal of 101221201000010 is 10000102122101.

It is a junction number, because it is equal to n+sod(n) for n = 101221200999955 and 101221201000000.

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, 7362542 + ... + 16020281.

It is an arithmetic number, because the mean of its divisors is an integer number (1803096324288).

Almost surely, 2^{101221201000010} is an apocalyptic number.

101221201000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221201000010 is an abundant number, since it is smaller than the sum of its proper divisors (129575128508854).

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

101221201000010 is a wasteful number, since it uses less digits than its factorization.

101221201000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23382988.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101221201000010 its reverse (10000102122101), we get a palindrome (111221303122111).

The spelling of 101221201000010 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred one million, ten", and thus it is an aban number.