101222101220 has 24 divisors (see below), whose sum is σ = 214954803000. Its totient is φ = 40033908992.

The previous prime is 101222101219. The next prime is 101222101237. The reversal of 101222101220 is 22101222101.

It can be written as a sum of positive squares in 4 ways, for example, as 356152384 + 100865948836 = 18872^2 + 317594^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101222101195 and 101222101204.

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, 28431395 + ... + 28434954.

It is an arithmetic number, because the mean of its divisors is an integer number (8956450125).

Almost surely, 2^101222101220 is an apocalyptic number.

101222101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101222101220 is an abundant number, since it is smaller than the sum of its proper divisors (113732701780).

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

101222101220 is a wasteful number, since it uses less digits than its factorization.

101222101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56866447 (or 56866445 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101222101220 its reverse (22101222101), we get a palindrome (123323323321).

The spelling of 101222101220 in words is "one hundred one billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty".