22201202201121 has 6 divisors (see below), whose sum is σ = 32068403179410. Its totient is φ = 14800801467408.

The previous prime is 22201202201041. The next prime is 22201202201131. The reversal of 22201202201121 is 12110220210222.

It is a happy number.

22201202201121 is a `hidden beast` number, since 2 + 220 + 120 + 2 + 201 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20679174174096 + 1522028027025 = 4547436^2 + 1233705^2 .

It is not a de Polignac number, because 22201202201121 - 2⁷ = 22201202200993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22201202201094 and 22201202201103.

It is not an unprimeable number, because it can be changed into a prime (22201202201131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1233400122276 + ... + 1233400122293.

It is an arithmetic number, because the mean of its divisors is an integer number (5344733863235).

Almost surely, 2^{22201202201121} is an apocalyptic number.

It is an amenable number.

22201202201121 is a deficient number, since it is larger than the sum of its proper divisors (9867200978289).

22201202201121 is a wasteful number, since it uses less digits than its factorization.

22201202201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466800244575 (or 2466800244572 counting only the distinct ones).

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

Adding to 22201202201121 its reverse (12110220210222), we get a palindrome (34311422411343).

The spelling of 22201202201121 in words is "twenty-two trillion, two hundred one billion, two hundred two million, two hundred one thousand, one hundred twenty-one".