1220023422 has 24 divisors (see below), whose sum is σ = 2714828376. Its totient is φ = 395683056.

The previous prime is 1220023393. The next prime is 1220023439. The reversal of 1220023422 is 2243200221.

1220023422 is a `hidden beast` number, since 1 + 220 + 0 + 23 + 422 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1220023395 and 1220023404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 915268 + ... + 916599.

It is an arithmetic number, because the mean of its divisors is an integer number (113117849).

Almost surely, 2^1220023422 is an apocalyptic number.

1220023422 is an abundant number, since it is smaller than the sum of its proper divisors (1494804954).

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

1220023422 is a wasteful number, since it uses less digits than its factorization.

1220023422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831912 (or 1831909 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1220023422 is about 34928.8336764914. The cubic root of 1220023422 is about 1068.5365681115.

Adding to 1220023422 its reverse (2243200221), we get a palindrome (3463223643).

The spelling of 1220023422 in words is "one billion, two hundred twenty million, twenty-three thousand, four hundred twenty-two".