22210012102121 has 8 divisors (see below), whose sum is σ = 22306242222504. Its totient is φ = 22113858027520.

The previous prime is 22210012102099. The next prime is 22210012102151. The reversal of 22210012102121 is 12120121001222.

It can be written as a sum of positive squares in 4 ways, for example, as 7084221024400 + 15125791077721 = 2661620^2 + 3889189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22210012102121 - 2³⁴ = 22192832232937 is a prime.

It is a super-2 number, since 2×22210012102121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22210012102121.

It is not an unprimeable number, because it can be changed into a prime (22210012102151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18426020 + ... + 19594341.

It is an arithmetic number, because the mean of its divisors is an integer number (2788280277813).

Almost surely, 2^{22210012102121} is an apocalyptic number.

It is an amenable number.

22210012102121 is a deficient number, since it is larger than the sum of its proper divisors (96230120383).

22210012102121 is a wasteful number, since it uses less digits than its factorization.

22210012102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38022891.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22210012102121 its reverse (12120121001222), we get a palindrome (34330133103343).

The spelling of 22210012102121 in words is "twenty-two trillion, two hundred ten billion, twelve million, one hundred two thousand, one hundred twenty-one".