1222593880 has 16 divisors (see below), whose sum is σ = 2750836320. Its totient is φ = 489037536.

The previous prime is 1222593863. The next prime is 1222593959. The reversal of 1222593880 is 883952221.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 30564847 = 1222593880 / (1 + 2 + 2 + 2 + 5 + 9 + 3 + 8 + 8 + 0).

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, 15282384 + ... + 15282463.

It is an arithmetic number, because the mean of its divisors is an integer number (171927270).

Almost surely, 2^1222593880 is an apocalyptic number.

1222593880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222593880 is an abundant number, since it is smaller than the sum of its proper divisors (1528242440).

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

1222593880 is a wasteful number, since it uses less digits than its factorization.

1222593880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30564858 (or 30564854 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1222593880 is about 34965.6099617896. The cubic root of 1222593880 is about 1069.2864722048.

The spelling of 1222593880 in words is "one billion, two hundred twenty-two million, five hundred ninety-three thousand, eight hundred eighty".