1222788588 has 48 divisors (see below), whose sum is σ = 3262533120. Its totient is φ = 349179264.

The previous prime is 1222788587. The next prime is 1222788601. The reversal of 1222788588 is 8858872221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222788588.

It is not an unprimeable number, because it can be changed into a prime (1222788587) 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, 246945 + ... + 251847.

It is an arithmetic number, because the mean of its divisors is an integer number (67969440).

Almost surely, 2^1222788588 is an apocalyptic number.

It is an amenable number.

1222788588 is an abundant number, since it is smaller than the sum of its proper divisors (2039744532).

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

1222788588 is a wasteful number, since it uses less digits than its factorization.

1222788588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7886 (or 7884 counting only the distinct ones).

The product of its digits is 1146880, while the sum is 51.

The square root of 1222788588 is about 34968.3941295565. The cubic root of 1222788588 is about 1069.3432333753.

The spelling of 1222788588 in words is "one billion, two hundred twenty-two million, seven hundred eighty-eight thousand, five hundred eighty-eight".