202202120009 has 2 divisors, whose sum is σ = 202202120010. Its totient is φ = 202202120008.

The previous prime is 202202119981. The next prime is 202202120027. The reversal of 202202120009 is 900021202202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124982046784 + 77220073225 = 353528^2 + 277885^2 .

It is a cyclic number.

It is not a de Polignac number, because 202202120009 - 2²⁰ = 202201071433 is a prime.

It is a super-2 number, since 2×202202120009² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202202120039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101101060004 + 101101060005.

It is an arithmetic number, because the mean of its divisors is an integer number (101101060005).

Almost surely, 2^202202120009 is an apocalyptic number.

It is an amenable number.

202202120009 is a deficient number, since it is larger than the sum of its proper divisors (1).

202202120009 is an equidigital number, since it uses as much as digits as its factorization.

202202120009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 202202120009 in words is "two hundred two billion, two hundred two million, one hundred twenty thousand, nine".