122102211220 has 48 divisors (see below), whose sum is σ = 280504425600. Its totient is φ = 44277096320.

The previous prime is 122102211197. The next prime is 122102211223. The reversal of 122102211220 is 22112201221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122102211194 and 122102211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102211223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 694015 + ... + 851974.

It is an arithmetic number, because the mean of its divisors is an integer number (5843842200).

Almost surely, 2^122102211220 is an apocalyptic number.

122102211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122102211220 is an abundant number, since it is smaller than the sum of its proper divisors (158402214380).

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

122102211220 is a wasteful number, since it uses less digits than its factorization.

122102211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546368 (or 1546366 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122102211220 its reverse (22112201221), we get a palindrome (144214412441).

Subtracting from 122102211220 its reverse (22112201221), we obtain a palindrome (99990009999).

The spelling of 122102211220 in words is "one hundred twenty-two billion, one hundred two million, two hundred eleven thousand, two hundred twenty".