64222221092 has 24 divisors (see below), whose sum is σ = 118738085760. Its totient is φ = 30344172320.

The previous prime is 64222221079. The next prime is 64222221097. The reversal of 64222221092 is 29012222246.

It is not an unprimeable number, because it can be changed into a prime (64222221097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5884334 + ... + 5895237.

It is an arithmetic number, because the mean of its divisors is an integer number (4947420240).

Almost surely, 2^64222221092 is an apocalyptic number.

It is an amenable number.

64222221092 is a deficient number, since it is larger than the sum of its proper divisors (54515864668).

64222221092 is a wasteful number, since it uses less digits than its factorization.

64222221092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11779651 (or 11779649 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 64222221092 in words is "sixty-four billion, two hundred twenty-two million, two hundred twenty-one thousand, ninety-two".