101221131022 has 16 divisors (see below), whose sum is σ = 165639524400. Its totient is φ = 46008231040.

The previous prime is 101221130999. The next prime is 101221131061. The reversal of 101221131022 is 220131122101.

It is a junction number, because it is equal to n+sod(n) for n = 101221130987 and 101221131005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1232004 + ... + 1311592.

It is an arithmetic number, because the mean of its divisors is an integer number (10352470275).

Almost surely, 2^101221131022 is an apocalyptic number.

101221131022 is a deficient number, since it is larger than the sum of its proper divisors (64418393378).

101221131022 is a wasteful number, since it uses less digits than its factorization.

101221131022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137411.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 101221131022 its reverse (220131122101), we get a palindrome (321352253123).

The spelling of 101221131022 in words is "one hundred one billion, two hundred twenty-one million, one hundred thirty-one thousand, twenty-two".