101131221010 has 8 divisors (see below), whose sum is σ = 182036197836. Its totient is φ = 40452488400.

The previous prime is 101131220947. The next prime is 101131221011. The reversal of 101131221010 is 10122131101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 99981807601 + 1149413409 = 316199^2 + 33903^2 .

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

It is not an unprimeable number, because it can be changed into a prime (101131221011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5056561041 + ... + 5056561060.

Almost surely, 2^101131221010 is an apocalyptic number.

101131221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101131221010 is a deficient number, since it is larger than the sum of its proper divisors (80904976826).

101131221010 is a wasteful number, since it uses less digits than its factorization.

101131221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10113122108.

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

Adding to 101131221010 its reverse (10122131101), we get a palindrome (111253352111).

The spelling of 101131221010 in words is "one hundred one billion, one hundred thirty-one million, two hundred twenty-one thousand, ten".