122001012212220 has 48 divisors (see below), whose sum is σ = 379558704661920. Its totient is φ = 32533603256448.

The previous prime is 122001012212203. The next prime is 122001012212221. The reversal of 122001012212220 is 22212210100221.

It is a happy number.

122001012212220 is a `hidden beast` number, since 1 + 220 + 0 + 1 + 0 + 1 + 221 + 2 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122001012212193 and 122001012212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001012212221) 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, 112963899657 + ... + 112963900736.

It is an arithmetic number, because the mean of its divisors is an integer number (7907473013790).

Almost surely, 2^{122001012212220} is an apocalyptic number.

122001012212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122001012212220 is an abundant number, since it is smaller than the sum of its proper divisors (257557692449700).

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

122001012212220 is a wasteful number, since it uses less digits than its factorization.

122001012212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225927800411 (or 225927800403 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122001012212220 its reverse (22212210100221), we get a palindrome (144213222312441).

The spelling of 122001012212220 in words is "one hundred twenty-two trillion, one billion, twelve million, two hundred twelve thousand, two hundred twenty".