22001002200120 has 64 divisors (see below), whose sum is σ = 68278972356000. Its totient is φ = 5664625852928.

The previous prime is 22001002200101. The next prime is 22001002200167. The reversal of 22001002200120 is 2100220010022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22001002200096 and 22001002200105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3161060055 + ... + 3161067014.

Almost surely, 2^{22001002200120} is an apocalyptic number.

22001002200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001002200120 is an abundant number, since it is smaller than the sum of its proper divisors (46277970155880).

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

22001002200120 is a wasteful number, since it uses less digits than its factorization.

22001002200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6322127112 (or 6322127108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22001002200120 its reverse (2100220010022), we get a palindrome (24101222210142).

The spelling of 22001002200120 in words is "twenty-two trillion, one billion, two million, two hundred thousand, one hundred twenty".