1202221992 has 16 divisors (see below), whose sum is σ = 3005555040. Its totient is φ = 400740656.

The previous prime is 1202221973. The next prime is 1202222003. The reversal of 1202221992 is 2991222021.

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, 25046268 + ... + 25046315.

It is an arithmetic number, because the mean of its divisors is an integer number (187847190).

Almost surely, 2^1202221992 is an apocalyptic number.

1202221992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202221992 is an abundant number, since it is smaller than the sum of its proper divisors (1803333048).

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

1202221992 is a wasteful number, since it uses less digits than its factorization.

1202221992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50092592 (or 50092588 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1202221992 is about 34673.0730106231. The cubic root of 1202221992 is about 1063.3140588896.

The spelling of 1202221992 in words is "one billion, two hundred two million, two hundred twenty-one thousand, nine hundred ninety-two".