101221100131 has 8 divisors (see below), whose sum is σ = 106294773024. Its totient is φ = 96203490240.

The previous prime is 101221100119. The next prime is 101221100147. The reversal of 101221100131 is 131001122101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101221100131 - 2⁹ = 101221099619 is a prime.

It is a super-2 number, since 2×101221100131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221100191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14012050 + ... + 14019271.

It is an arithmetic number, because the mean of its divisors is an integer number (13286846628).

Almost surely, 2^101221100131 is an apocalyptic number.

101221100131 is a deficient number, since it is larger than the sum of its proper divisors (5073672893).

101221100131 is a wasteful number, since it uses less digits than its factorization.

101221100131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28031501.

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

Adding to 101221100131 its reverse (131001122101), we get a palindrome (232222222232).

The spelling of 101221100131 in words is "one hundred one billion, two hundred twenty-one million, one hundred thousand, one hundred thirty-one".