1222099955 has 8 divisors (see below), whose sum is σ = 1468333104. Its totient is φ = 976471200.

The previous prime is 1222099951. The next prime is 1222099979. The reversal of 1222099955 is 5599902221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1222099955 - 2² = 1222099951 is a prime.

It is a super-2 number, since 2×1222099955² = 2987056600022004050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222099951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146636 + ... + 154745.

It is an arithmetic number, because the mean of its divisors is an integer number (183541638).

Almost surely, 2^1222099955 is an apocalyptic number.

1222099955 is a deficient number, since it is larger than the sum of its proper divisors (246233149).

1222099955 is an equidigital number, since it uses as much as digits as its factorization.

1222099955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302197.

The product of its (nonzero) digits is 145800, while the sum is 44.

The square root of 1222099955 is about 34958.5462369361. The cubic root of 1222099955 is about 1069.1424564176.

The spelling of 1222099955 in words is "one billion, two hundred twenty-two million, ninety-nine thousand, nine hundred fifty-five".