122222121321200 has 60 divisors (see below), whose sum is σ = 293639715583800. Its totient is φ = 48888670529280.

The previous prime is 122222121321199. The next prime is 122222121321239. The reversal of 122222121321200 is 2123121222221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197349626 + ... + 197967974.

It is an arithmetic number, because the mean of its divisors is an integer number (4893995259730).

Almost surely, 2^{122222121321200} is an apocalyptic number.

122222121321200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122222121321200 is an abundant number, since it is smaller than the sum of its proper divisors (171417594262600).

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

122222121321200 is a wasteful number, since it uses less digits than its factorization.

122222121321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112514 (or 1112503 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 122222121321200 its reverse (2123121222221), we get a palindrome (124345242543421).

The spelling of 122222121321200 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, one hundred twenty-one million, three hundred twenty-one thousand, two hundred".