22102012200121 has 32 divisors (see below), whose sum is σ = 26767639358208. Its totient is φ = 17815301222400.

The previous prime is 22102012200101. The next prime is 22102012200127. The reversal of 22102012200121 is 12100221020122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22102012200121 - 2¹⁵ = 22102012167353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22102012200095 and 22102012200104.

It is not an unprimeable number, because it can be changed into a prime (22102012200127) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1488243346 + ... + 1488258196.

It is an arithmetic number, because the mean of its divisors is an integer number (836488729944).

Almost surely, 2^{22102012200121} is an apocalyptic number.

It is an amenable number.

22102012200121 is a deficient number, since it is larger than the sum of its proper divisors (4665627158087).

22102012200121 is a wasteful number, since it uses less digits than its factorization.

22102012200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24481.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22102012200121 its reverse (12100221020122), we get a palindrome (34202233220243).

The spelling of 22102012200121 in words is "twenty-two trillion, one hundred two billion, twelve million, two hundred thousand, one hundred twenty-one".