122101101220 has 48 divisors (see below), whose sum is σ = 297170028288. Its totient is φ = 41273608320.

The previous prime is 122101101197. The next prime is 122101101277. The reversal of 122101101220 is 22101101221.

It is a self number, because there is not a number n which added to its sum of digits gives 122101101220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6131967 + ... + 6151846.

It is an arithmetic number, because the mean of its divisors is an integer number (6191042256).

Almost surely, 2^122101101220 is an apocalyptic number.

122101101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122101101220 is an abundant number, since it is smaller than the sum of its proper divisors (175068927068).

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

122101101220 is a wasteful number, since it uses less digits than its factorization.

122101101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12283900 (or 12283898 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122101101220 its reverse (22101101221), we get a palindrome (144202202441).

Subtracting from 122101101220 its reverse (22101101221), we obtain a palindrome (99999999999).

The spelling of 122101101220 in words is "one hundred twenty-two billion, one hundred one million, one hundred one thousand, two hundred twenty".