221122001118 has 64 divisors (see below), whose sum is σ = 466590136320. Its totient is φ = 69767740800.

The previous prime is 221122001101. The next prime is 221122001119. The reversal of 221122001118 is 811100221122.

It is a junction number, because it is equal to n+sod(n) for n = 221122001094 and 221122001103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221122001119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1976496 + ... + 2085372.

It is an arithmetic number, because the mean of its divisors is an integer number (7290470880).

Almost surely, 2^221122001118 is an apocalyptic number.

221122001118 is an abundant number, since it is smaller than the sum of its proper divisors (245468135202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221122001118 is a wasteful number, since it uses less digits than its factorization.

221122001118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109153.

The product of its (nonzero) digits is 128, while the sum is 21.

The spelling of 221122001118 in words is "two hundred twenty-one billion, one hundred twenty-two million, one thousand, one hundred eighteen".