1222115222 has 16 divisors (see below), whose sum is σ = 1855245840. Its totient is φ = 603721728.

The previous prime is 1222115137. The next prime is 1222115231. The reversal of 1222115222 is 2225112221.

It is a junction number, because it is equal to n+sod(n) for n = 1222115194 and 1222115203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114998 + ... + 125174.

It is an arithmetic number, because the mean of its divisors is an integer number (115952865).

Almost surely, 2^1222115222 is an apocalyptic number.

1222115222 is a deficient number, since it is larger than the sum of its proper divisors (633130618).

1222115222 is a wasteful number, since it uses less digits than its factorization.

1222115222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10895.

The product of its digits is 320, while the sum is 20.

The square root of 1222115222 is about 34958.7645948766. The cubic root of 1222115222 is about 1069.1469084621.

Adding to 1222115222 its reverse (2225112221), we get a palindrome (3447227443).

The spelling of 1222115222 in words is "one billion, two hundred twenty-two million, one hundred fifteen thousand, two hundred twenty-two".