221156106622 has 32 divisors (see below), whose sum is σ = 366456096864. Its totient is φ = 99262992000.

The previous prime is 221156106491. The next prime is 221156106623. The reversal of 221156106622 is 226601651122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221156106623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695388 + ... + 962224.

It is an arithmetic number, because the mean of its divisors is an integer number (11451753027).

Almost surely, 2^221156106622 is an apocalyptic number.

221156106622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221156106622 is a deficient number, since it is larger than the sum of its proper divisors (145299990242).

221156106622 is a wasteful number, since it uses less digits than its factorization.

221156106622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267324.

The product of its (nonzero) digits is 17280, while the sum is 34.

Adding to 221156106622 its reverse (226601651122), we get a palindrome (447757757744).

The spelling of 221156106622 in words is "two hundred twenty-one billion, one hundred fifty-six million, one hundred six thousand, six hundred twenty-two".