1222051400 has 48 divisors (see below), whose sum is σ = 2907366000. Its totient is φ = 477449280.

The previous prime is 1222051399. The next prime is 1222051421. The reversal of 1222051400 is 41502221.

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, 62450 + ... + 79649.

It is an arithmetic number, because the mean of its divisors is an integer number (60570125).

Almost surely, 2^1222051400 is an apocalyptic number.

1222051400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222051400 is an abundant number, since it is smaller than the sum of its proper divisors (1685314600).

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

1222051400 is a wasteful number, since it uses less digits than its factorization.

1222051400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142158 (or 142149 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1222051400 is about 34957.8517646608. The cubic root of 1222051400 is about 1069.1282969377.

Adding to 1222051400 its reverse (41502221), we get a palindrome (1263553621).

The spelling of 1222051400 in words is "one billion, two hundred twenty-two million, fifty-one thousand, four hundred".