113211212222 has 4 divisors (see below), whose sum is σ = 169816818336. Its totient is φ = 56605606110.

The previous prime is 113211212209. The next prime is 113211212251. The reversal of 113211212222 is 222212112311.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 113211212194 and 113211212203.

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, 28302803054 + ... + 28302803057.

It is an arithmetic number, because the mean of its divisors is an integer number (42454204584).

Almost surely, 2^113211212222 is an apocalyptic number.

113211212222 is a deficient number, since it is larger than the sum of its proper divisors (56605606114).

113211212222 is an equidigital number, since it uses as much as digits as its factorization.

113211212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56605606113.

The product of its digits is 192, while the sum is 20.

Adding to 113211212222 its reverse (222212112311), we get a palindrome (335423324533).

The spelling of 113211212222 in words is "one hundred thirteen billion, two hundred eleven million, two hundred twelve thousand, two hundred twenty-two".