221002212222112 has 24 divisors (see below), whose sum is σ = 454015414240416. Its totient is φ = 105696710192832.

The previous prime is 221002212222107. The next prime is 221002212222133. The reversal of 221002212222112 is 211222212200122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150137371698 + ... + 150137373169.

It is an arithmetic number, because the mean of its divisors is an integer number (18917308926684).

Almost surely, 2^{221002212222112} is an apocalyptic number.

It is an amenable number.

221002212222112 is an abundant number, since it is smaller than the sum of its proper divisors (233013202018304).

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

221002212222112 is a wasteful number, since it uses less digits than its factorization.

221002212222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300274744900 (or 300274744892 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 221002212222112 its reverse (211222212200122), we get a palindrome (432224424422234).

The spelling of 221002212222112 in words is "two hundred twenty-one trillion, two billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twelve".