202261992242 has 18 divisors (see below), whose sum is σ = 304483534173. Its totient is φ = 100768781592.

The previous prime is 202261992241. The next prime is 202261992269. The reversal of 202261992242 is 242299162202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 186597216961 + 15664775281 = 431969^2 + 125159^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=318011.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202261992242.

It is not an unprimeable number, because it can be changed into a prime (202261992241) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 309742388 + ... + 309743040.

Almost surely, 2^202261992242 is an apocalyptic number.

202261992242 is a deficient number, since it is larger than the sum of its proper divisors (102221541931).

202261992242 is an frugal number, since it uses more digits than its factorization.

202261992242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282 (or 1142 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 202261992242 in words is "two hundred two billion, two hundred sixty-one million, nine hundred ninety-two thousand, two hundred forty-two".