221111222210022 has 16 divisors (see below), whose sum is σ = 442223848282032. Its totient is φ = 73703506759680.

The previous prime is 221111222209987. The next prime is 221111222210059. The reversal of 221111222210022 is 220012222111122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56441179 + ... + 60231462.

It is an arithmetic number, because the mean of its divisors is an integer number (27638990517627).

Almost surely, 2^{221111222210022} is an apocalyptic number.

221111222210022 is an abundant number, since it is smaller than the sum of its proper divisors (221112626072010).

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

221111222210022 is a wasteful number, since it uses less digits than its factorization.

221111222210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116988503.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 221111222210022 its reverse (220012222111122), we get a palindrome (441123444321144).

The spelling of 221111222210022 in words is "two hundred twenty-one trillion, one hundred eleven billion, two hundred twenty-two million, two hundred ten thousand, twenty-two".