1222402412 has 36 divisors (see below), whose sum is σ = 2714690664. Its totient is φ = 476259840.

The previous prime is 1222402399. The next prime is 1222402421. The reversal of 1222402412 is 2142042221.

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, 281333 + ... + 285644.

It is an arithmetic number, because the mean of its divisors is an integer number (75408074).

Almost surely, 2^1222402412 is an apocalyptic number.

It is an amenable number.

1222402412 is an abundant number, since it is smaller than the sum of its proper divisors (1492288252).

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

1222402412 is a wasteful number, since it uses less digits than its factorization.

1222402412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567006 (or 566997 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1222402412 is about 34962.8719072104. The cubic root of 1222402412 is about 1069.2306496802.

Adding to 1222402412 its reverse (2142042221), we get a palindrome (3364444633).

The spelling of 1222402412 in words is "one billion, two hundred twenty-two million, four hundred two thousand, four hundred twelve".