722111221022 has 16 divisors (see below), whose sum is σ = 1140262195200. Its totient is φ = 342026708760.

The previous prime is 722111221001. The next prime is 722111221037. The reversal of 722111221022 is 220122111227.

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, 209822 + ... + 1219937.

It is an arithmetic number, because the mean of its divisors is an integer number (71266387200).

Almost surely, 2^722111221022 is an apocalyptic number.

722111221022 is a deficient number, since it is larger than the sum of its proper divisors (418150974178).

722111221022 is a wasteful number, since it uses less digits than its factorization.

722111221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443071.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 722111221022 its reverse (220122111227), we get a palindrome (942233332249).

The spelling of 722111221022 in words is "seven hundred twenty-two billion, one hundred eleven million, two hundred twenty-one thousand, twenty-two".