222137025554161 has 4 divisors (see below), whose sum is σ = 222543126149872. Its totient is φ = 221730924958452.

The previous prime is 222137025554149. The next prime is 222137025554207. The reversal of 222137025554161 is 161455520731222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222137025554161 - 2¹⁹ = 222137025029873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222137025534161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203050297035 + ... + 203050298128.

It is an arithmetic number, because the mean of its divisors is an integer number (55635781537468).

Almost surely, 2^{222137025554161} is an apocalyptic number.

It is an amenable number.

222137025554161 is a deficient number, since it is larger than the sum of its proper divisors (406100595711).

222137025554161 is an equidigital number, since it uses as much as digits as its factorization.

222137025554161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406100595710.

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 222137025554161 in words is "two hundred twenty-two trillion, one hundred thirty-seven billion, twenty-five million, five hundred fifty-four thousand, one hundred sixty-one".