222155272506722 has 4 divisors (see below), whose sum is σ = 333232908760086. Its totient is φ = 111077636253360.

The previous prime is 222155272506697. The next prime is 222155272506733. The reversal of 222155272506722 is 227605272551222.

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., 143803051387681 + 78352221119041 = 11991791^2 + 8851679^2 .

It is a super-3 number, since 3×222155272506722³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55538818126679 + ... + 55538818126682.

Almost surely, 2^{222155272506722} is an apocalyptic number.

222155272506722 is a deficient number, since it is larger than the sum of its proper divisors (111077636253364).

222155272506722 is a wasteful number, since it uses less digits than its factorization.

222155272506722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111077636253363.

The product of its (nonzero) digits is 4704000, while the sum is 50.

The spelling of 222155272506722 in words is "two hundred twenty-two trillion, one hundred fifty-five billion, two hundred seventy-two million, five hundred six thousand, seven hundred twenty-two".