120121221200022 has 72 divisors (see below), whose sum is σ = 302809375533600. Its totient is φ = 34314128942688.

The previous prime is 120121221199951. The next prime is 120121221200051. The reversal of 120121221200022 is 220002122121021.

It is a happy number.

120121221200022 is a `hidden beast` number, since 1 + 201 + 21 + 221 + 200 + 0 + 22 = 666.

It is a super-2 number, since 2×120121221200022² (a number of 29 digits) contains 22 as substring.

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 = 120121221199968 and 120121221200004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7470697 + ... + 17206212.

It is an arithmetic number, because the mean of its divisors is an integer number (4205685771300).

Almost surely, 2^{120121221200022} is an apocalyptic number.

120121221200022 is an abundant number, since it is smaller than the sum of its proper divisors (182688154333578).

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

120121221200022 is a wasteful number, since it uses less digits than its factorization.

120121221200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24682450 (or 24682440 counting only the distinct ones).

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

Adding to 120121221200022 its reverse (220002122121021), we get a palindrome (340123343321043).

The spelling of 120121221200022 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred thousand, twenty-two".