221112112002 has 32 divisors (see below), whose sum is σ = 450469289088. Its totient is φ = 72342525696.

The previous prime is 221112111959. The next prime is 221112112009. The reversal of 221112112002 is 200211211122.

It is not an unprimeable number, because it can be changed into a prime (221112112009) 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, 1513293 + ... + 1652960.

It is an arithmetic number, because the mean of its divisors is an integer number (14077165284).

Almost surely, 2^221112112002 is an apocalyptic number.

221112112002 is an abundant number, since it is smaller than the sum of its proper divisors (229357177086).

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

221112112002 is a wasteful number, since it uses less digits than its factorization.

221112112002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166474.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221112112002 its reverse (200211211122), we get a palindrome (421323323124).

The spelling of 221112112002 in words is "two hundred twenty-one billion, one hundred twelve million, one hundred twelve thousand, two".