22200031121 has 8 divisors (see below), whose sum is σ = 22288484904. Its totient is φ = 22111689600.

The previous prime is 22200031103. The next prime is 22200031163. The reversal of 22200031121 is 12113000222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 165894400 + 22034136721 = 12880^2 + 148439^2 .

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 22200031121 - 2²⁶ = 22132922257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22200031096 and 22200031105.

It is not an unprimeable number, because it can be changed into a prime (22200031171) 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, 379955 + ... + 434471.

It is an arithmetic number, because the mean of its divisors is an integer number (2786060613).

Almost surely, 2^22200031121 is an apocalyptic number.

It is an amenable number.

22200031121 is a deficient number, since it is larger than the sum of its proper divisors (88453783).

22200031121 is a wasteful number, since it uses less digits than its factorization.

22200031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56131.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22200031121 its reverse (12113000222), we get a palindrome (34313031343).

The spelling of 22200031121 in words is "twenty-two billion, two hundred million, thirty-one thousand, one hundred twenty-one".