221222404102 has 64 divisors (see below), whose sum is σ = 385616816640. Its totient is φ = 93232339200.

The previous prime is 221222404097. The next prime is 221222404103. The reversal of 221222404102 is 201404222122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222404103) 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, 101523649 + ... + 101525827.

It is an arithmetic number, because the mean of its divisors is an integer number (6025262760).

Almost surely, 2^221222404102 is an apocalyptic number.

221222404102 is a deficient number, since it is larger than the sum of its proper divisors (164394412538).

221222404102 is a wasteful number, since it uses less digits than its factorization.

221222404102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 221222404102 its reverse (201404222122), we get a palindrome (422626626224).

The spelling of 221222404102 in words is "two hundred twenty-one billion, two hundred twenty-two million, four hundred four thousand, one hundred two".