221112102132402 has 64 divisors (see below), whose sum is σ = 477626437209600. Its totient is φ = 67836654422784.

The previous prime is 221112102132391. The next prime is 221112102132407. The reversal of 221112102132402 is 204231201211122.

It is not an unprimeable number, because it can be changed into a prime (221112102132407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 687276343 + ... + 687597989.

It is an arithmetic number, because the mean of its divisors is an integer number (7462913081400).

Almost surely, 2^{221112102132402} is an apocalyptic number.

221112102132402 is an abundant number, since it is smaller than the sum of its proper divisors (256514335077198).

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

221112102132402 is a wasteful number, since it uses less digits than its factorization.

221112102132402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347267.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 221112102132402 its reverse (204231201211122), we get a palindrome (425343303343524).

The spelling of 221112102132402 in words is "two hundred twenty-one trillion, one hundred twelve billion, one hundred two million, one hundred thirty-two thousand, four hundred two".