1115212022 has 4 divisors (see below), whose sum is σ = 1672818036. Its totient is φ = 557606010.

The previous prime is 1115211997. The next prime is 1115212031. The reversal of 1115212022 is 2202125111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2202125111 = 5407 ⋅407273.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278803004 + ... + 278803007.

It is an arithmetic number, because the mean of its divisors is an integer number (418204509).

Almost surely, 2^1115212022 is an apocalyptic number.

1115212022 is a deficient number, since it is larger than the sum of its proper divisors (557606014).

1115212022 is an equidigital number, since it uses as much as digits as its factorization.

1115212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557606013.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1115212022 is about 33394.7903422076. The cubic root of 1115212022 is about 1037.0168525459.

Adding to 1115212022 its reverse (2202125111), we get a palindrome (3317337133).

The spelling of 1115212022 in words is "one billion, one hundred fifteen million, two hundred twelve thousand, twenty-two".