23222120202 has 20 divisors (see below), whose sum is σ = 52034751186. Its totient is φ = 7740706680.

The previous prime is 23222120191. The next prime is 23222120279. The reversal of 23222120202 is 20202122232.

It can be written as a sum of positive squares in only one way, i.e., 12638031561 + 10584088641 = 112419^2 + 102879^2 .

It is a super-2 number, since 2×23222120202² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 71673049 + ... + 71673372.

Almost surely, 2^23222120202 is an apocalyptic number.

23222120202 is an abundant number, since it is smaller than the sum of its proper divisors (28812630984).

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

23222120202 is a wasteful number, since it uses less digits than its factorization.

23222120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143346435 (or 143346426 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 23222120202 its reverse (20202122232), we get a palindrome (43424242434).

The spelling of 23222120202 in words is "twenty-three billion, two hundred twenty-two million, one hundred twenty thousand, two hundred two".