101120111221 has 16 divisors (see below), whose sum is σ = 101930400000. Its totient is φ = 100314418176.

The previous prime is 101120111203. The next prime is 101120111237. The reversal of 101120111221 is 122111021101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101120111221 - 2⁹ = 101120110709 is a prime.

It is a super-2 number, since 2×101120111221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101120111291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70762135 + ... + 70763563.

It is an arithmetic number, because the mean of its divisors is an integer number (6370650000).

Almost surely, 2^101120111221 is an apocalyptic number.

It is an amenable number.

101120111221 is a deficient number, since it is larger than the sum of its proper divisors (810288779).

101120111221 is a wasteful number, since it uses less digits than its factorization.

101120111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101120111221 its reverse (122111021101), we get a palindrome (223231132322).

The spelling of 101120111221 in words is "one hundred one billion, one hundred twenty million, one hundred eleven thousand, two hundred twenty-one".