22012212120120 has 64 divisors (see below), whose sum is σ = 73374040404000. Its totient is φ = 5869923231744.

The previous prime is 22012212120109. The next prime is 22012212120131. The reversal of 22012212120120 is 2102121221022.

It is a happy number.

22012212120120 is a `hidden beast` number, since 2 + 201 + 221 + 2 + 120 + 120 = 666.

It is an interprime number because it is at equal distance from previous prime (22012212120109) and next prime (22012212120131).

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 = 22012212120093 and 22012212120102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10190837865 + ... + 10190840024.

Almost surely, 2^{22012212120120} is an apocalyptic number.

22012212120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012212120120 is an abundant number, since it is smaller than the sum of its proper divisors (51361828283880).

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

22012212120120 is a wasteful number, since it uses less digits than its factorization.

22012212120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20381677909 (or 20381677899 counting only the distinct ones).

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

Adding to 22012212120120 its reverse (2102121221022), we get a palindrome (24114333341142).

The spelling of 22012212120120 in words is "twenty-two trillion, twelve billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty".