122212222120220 has 48 divisors (see below), whose sum is σ = 256698380782368. Its totient is φ = 48874849071360.

The previous prime is 122212222120187. The next prime is 122212222120229. The reversal of 122212222120220 is 22021222212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212222120229) 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, 3657608234 + ... + 3657641646.

It is an arithmetic number, because the mean of its divisors is an integer number (5347882932966).

Almost surely, 2^{122212222120220} is an apocalyptic number.

122212222120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212222120220 is an abundant number, since it is smaller than the sum of its proper divisors (134486158662148).

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

122212222120220 is a wasteful number, since it uses less digits than its factorization.

122212222120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65510 (or 65508 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 122212222120220 its reverse (22021222212221), we get a palindrome (144233444332441).

The spelling of 122212222120220 in words is "one hundred twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twenty thousand, two hundred twenty".