222001205157 has 24 divisors (see below), whose sum is σ = 339791340096. Its totient is φ = 139188172416.

The previous prime is 222001205147. The next prime is 222001205177. The reversal of 222001205157 is 751502100222.

222001205157 is a `hidden beast` number, since 2 + 2 + 20 + 0 + 120 + 515 + 7 = 666.

It is not a de Polignac number, because 222001205157 - 2¹⁸ = 222000943013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222001205157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001205147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 355113 + ... + 755054.

It is an arithmetic number, because the mean of its divisors is an integer number (14157972504).

Almost surely, 2^222001205157 is an apocalyptic number.

It is an amenable number.

222001205157 is a deficient number, since it is larger than the sum of its proper divisors (117790134939).

222001205157 is a wasteful number, since it uses less digits than its factorization.

222001205157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111497 (or 1111494 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

Adding to 222001205157 its reverse (751502100222), we get a palindrome (973503305379).

The spelling of 222001205157 in words is "two hundred twenty-two billion, one million, two hundred five thousand, one hundred fifty-seven".