101221013110 has 16 divisors (see below), whose sum is σ = 208226084256. Its totient is φ = 34704347328.

The previous prime is 101221013087. The next prime is 101221013123. The reversal of 101221013110 is 11310122101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723007167 + ... + 723007306.

It is an arithmetic number, because the mean of its divisors is an integer number (13014130266).

Almost surely, 2^101221013110 is an apocalyptic number.

101221013110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221013110 is an abundant number, since it is smaller than the sum of its proper divisors (107005071146).

101221013110 is a wasteful number, since it uses less digits than its factorization.

101221013110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446014487.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 101221013110 its reverse (11310122101), we get a palindrome (112531135211).

The spelling of 101221013110 in words is "one hundred one billion, two hundred twenty-one million, thirteen thousand, one hundred ten".