101221111201012 has 24 divisors (see below), whose sum is σ = 195153573539232. Its totient is φ = 45554055444000.

The previous prime is 101221111200967. The next prime is 101221111201031. The reversal of 101221111201012 is 210102111122101.

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, 11388509418 + ... + 11388518305.

It is an arithmetic number, because the mean of its divisors is an integer number (8131398897468).

Almost surely, 2^{101221111201012} is an apocalyptic number.

It is an amenable number.

101221111201012 is a deficient number, since it is larger than the sum of its proper divisors (93932462338220).

101221111201012 is a wasteful number, since it uses less digits than its factorization.

101221111201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22777027839 (or 22777027837 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 101221111201012 its reverse (210102111122101), we get a palindrome (311323222323113).

The spelling of 101221111201012 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred eleven million, two hundred one thousand, twelve".