202212222401 has 10 divisors (see below), whose sum is σ = 235900225602. Its totient is φ = 173324760000.

The previous prime is 202212222349. The next prime is 202212222409. The reversal of 202212222401 is 104222212202.

It can be written as a sum of positive squares in only one way, i.e., 202161741376 + 50481025 = 449624^2 + 7105^2 .

It is not a de Polignac number, because 202212222401 - 2¹⁰ = 202212221377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202212222409) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42107600 + ... + 42112401.

Almost surely, 2^202212222401 is an apocalyptic number.

It is an amenable number.

202212222401 is a deficient number, since it is larger than the sum of its proper divisors (33688003201).

202212222401 is an frugal number, since it uses more digits than its factorization.

202212222401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84220029 (or 84220008 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202212222401 its reverse (104222212202), we get a palindrome (306434434603).

The spelling of 202212222401 in words is "two hundred two billion, two hundred twelve million, two hundred twenty-two thousand, four hundred one".