242022200261 has 2 divisors, whose sum is σ = 242022200262. Its totient is φ = 242022200260.

The previous prime is 242022200201. The next prime is 242022200263. The reversal of 242022200261 is 162002220242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141653624161 + 100368576100 = 376369^2 + 316810^2 .

It is a cyclic number.

It is not a de Polignac number, because 242022200261 - 2²⁶ = 241955091397 is a prime.

Together with 242022200263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242022200263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121011100130 + 121011100131.

It is an arithmetic number, because the mean of its divisors is an integer number (121011100131).

Almost surely, 2^242022200261 is an apocalyptic number.

It is an amenable number.

242022200261 is a deficient number, since it is larger than the sum of its proper divisors (1).

242022200261 is an equidigital number, since it uses as much as digits as its factorization.

242022200261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The spelling of 242022200261 in words is "two hundred forty-two billion, twenty-two million, two hundred thousand, two hundred sixty-one".