222400913064578 has 4 divisors (see below), whose sum is σ = 333601369596870. Its totient is φ = 111200456532288.

The previous prime is 222400913064559. The next prime is 222400913064593. The reversal of 222400913064578 is 875460319004222.

222400913064578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 199862318229289 + 22538594835289 = 14137267^2 + 4747483^2 .

It is a super-2 number, since 2×222400913064578² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600228266143 + ... + 55600228266146.

It is a 1-persistent number, because it is pandigital, but 2⋅222400913064578 = 444801826129156 is not.

Almost surely, 2^{222400913064578} is an apocalyptic number.

222400913064578 is a deficient number, since it is larger than the sum of its proper divisors (111200456532292).

222400913064578 is a wasteful number, since it uses less digits than its factorization.

222400913064578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111200456532291.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 222400913064578 in words is "two hundred twenty-two trillion, four hundred billion, nine hundred thirteen million, sixty-four thousand, five hundred seventy-eight".