1220989022 has 8 divisors (see below), whose sum is σ = 1997982072. Its totient is φ = 554995000.

The previous prime is 1220989019. The next prime is 1220989031. The reversal of 1220989022 is 2209890221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27749729 + ... + 27749772.

It is an arithmetic number, because the mean of its divisors is an integer number (249747759).

Almost surely, 2^1220989022 is an apocalyptic number.

1220989022 is a deficient number, since it is larger than the sum of its proper divisors (776993050).

1220989022 is a wasteful number, since it uses less digits than its factorization.

1220989022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55499514.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1220989022 is about 34942.6533337124. The cubic root of 1220989022 is about 1068.8183951669.

The spelling of 1220989022 in words is "one billion, two hundred twenty million, nine hundred eighty-nine thousand, twenty-two".