1220012222 has 32 divisors (see below), whose sum is σ = 2153469024. Its totient is φ = 511056000.

The previous prime is 1220012221. The next prime is 1220012273. The reversal of 1220012222 is 2222100221.

It is a junction number, because it is equal to n+sod(n) for n = 1220012197 and 1220012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220012221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190472 + ... + 196772.

It is an arithmetic number, because the mean of its divisors is an integer number (67295907).

Almost surely, 2^1220012222 is an apocalyptic number.

1220012222 is a deficient number, since it is larger than the sum of its proper divisors (933456802).

1220012222 is a wasteful number, since it uses less digits than its factorization.

1220012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7004.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1220012222 is about 34928.6733501288. The cubic root of 1220012222 is about 1068.5332983256.

Adding to 1220012222 its reverse (2222100221), we get a palindrome (3442112443).

The spelling of 1220012222 in words is "one billion, two hundred twenty million, twelve thousand, two hundred twenty-two".