1222022000 has 40 divisors (see below), whose sum is σ = 2954854032. Its totient is φ = 488808000.

The previous prime is 1222021987. The next prime is 1222022029. The reversal of 1222022000 is 2202221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303506 + ... + 307505.

Almost surely, 2^1222022000 is an apocalyptic number.

1222022000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222022000 is an abundant number, since it is smaller than the sum of its proper divisors (1732832032).

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

1222022000 is an equidigital number, since it uses as much as digits as its factorization.

1222022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611034 (or 611018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1222022000 is about 34957.4312557430. The cubic root of 1222022000 is about 1069.1197232055.

Adding to 1222022000 its reverse (2202221), we get a palindrome (1224224221).

The spelling of 1222022000 in words is "one billion, two hundred twenty-two million, twenty-two thousand".