1222688893221 has 16 divisors (see below), whose sum is σ = 1811409808320. Its totient is φ = 815117443920.

The previous prime is 1222688893219. The next prime is 1222688893277. The reversal of 1222688893221 is 1223988862221.

1222688893221 is a `hidden beast` number, since 12 + 226 + 8 + 8 + 89 + 322 + 1 = 666.

It is not a de Polignac number, because 1222688893221 - 2¹ = 1222688893219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222688893211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3459511 + ... + 3796523.

It is an arithmetic number, because the mean of its divisors is an integer number (113213113020).

Almost surely, 2^{1222688893221} is an apocalyptic number.

It is an amenable number.

1222688893221 is a deficient number, since it is larger than the sum of its proper divisors (588720915099).

1222688893221 is a wasteful number, since it uses less digits than its factorization.

1222688893221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471393 (or 471387 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The spelling of 1222688893221 in words is "one trillion, two hundred twenty-two billion, six hundred eighty-eight million, eight hundred ninety-three thousand, two hundred twenty-one".