101131120221 has 16 divisors (see below), whose sum is σ = 140714775936. Its totient is φ = 64484547776.

The previous prime is 101131120213. The next prime is 101131120271. The reversal of 101131120221 is 122021131101.

It is a cyclic number.

It is not a de Polignac number, because 101131120221 - 2³ = 101131120213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101131120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101131120271) 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, 1015951 + ... + 1111043.

It is an arithmetic number, because the mean of its divisors is an integer number (8794673496).

Almost surely, 2^101131120221 is an apocalyptic number.

It is an amenable number.

101131120221 is a deficient number, since it is larger than the sum of its proper divisors (39583655715).

101131120221 is a wasteful number, since it uses less digits than its factorization.

101131120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110532.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 101131120221 its reverse (122021131101), we get a palindrome (223152251322).

The spelling of 101131120221 in words is "one hundred one billion, one hundred thirty-one million, one hundred twenty thousand, two hundred twenty-one".