221002212031122 has 64 divisors (see below), whose sum is σ = 449332823162880. Its totient is φ = 72454789756800.

The previous prime is 221002212031099. The next prime is 221002212031129. The reversal of 221002212031122 is 221130212200122.

It is not an unprimeable number, because it can be changed into a prime (221002212031129) 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, 2843859847 + ... + 2843937557.

It is an arithmetic number, because the mean of its divisors is an integer number (7020825361920).

Almost surely, 2^{221002212031122} is an apocalyptic number.

221002212031122 is an abundant number, since it is smaller than the sum of its proper divisors (228330611131758).

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

221002212031122 is a wasteful number, since it uses less digits than its factorization.

221002212031122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105879.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 221002212031122 its reverse (221130212200122), we get a palindrome (442132424231244).

The spelling of 221002212031122 in words is "two hundred twenty-one trillion, two billion, two hundred twelve million, thirty-one thousand, one hundred twenty-two".