221222042124202 has 64 divisors (see below), whose sum is σ = 417276027924480. Its totient is φ = 85765381549056.

The previous prime is 221222042124137. The next prime is 221222042124229. The reversal of 221222042124202 is 202421240222122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27803718 + ... + 34863889.

It is an arithmetic number, because the mean of its divisors is an integer number (6519937936320).

Almost surely, 2^{221222042124202} is an apocalyptic number.

221222042124202 is a deficient number, since it is larger than the sum of its proper divisors (196053985800278).

221222042124202 is a wasteful number, since it uses less digits than its factorization.

221222042124202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62668235.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 221222042124202 its reverse (202421240222122), we get a palindrome (423643282346324).

The spelling of 221222042124202 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, forty-two million, one hundred twenty-four thousand, two hundred two".