101221100076 has 24 divisors (see below), whose sum is σ = 239417946544. Its totient is φ = 33278169600.

The previous prime is 101221100051. The next prime is 101221100077. The reversal of 101221100076 is 670001122101.

It is a happy number.

It is a super-2 number, since 2×101221100076² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101221100077) 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, 57773725 + ... + 57775476.

Almost surely, 2^101221100076 is an apocalyptic number.

It is an amenable number.

101221100076 is an abundant number, since it is smaller than the sum of its proper divisors (138196846468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101221100076 is a wasteful number, since it uses less digits than its factorization.

101221100076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115549281 (or 115549279 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 21.

Adding to 101221100076 its reverse (670001122101), we get a palindrome (771222222177).

The spelling of 101221100076 in words is "one hundred one billion, two hundred twenty-one million, one hundred thousand, seventy-six".