1220101222 has 12 divisors (see below), whose sum is σ = 1857888900. Its totient is φ = 600940956.

The previous prime is 1220101189. The next prime is 1220101241. The reversal of 1220101222 is 2221010221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58972 + ... + 76927.

It is an arithmetic number, because the mean of its divisors is an integer number (154824075).

Almost surely, 2^1220101222 is an apocalyptic number.

1220101222 is a deficient number, since it is larger than the sum of its proper divisors (637787678).

1220101222 is an equidigital number, since it uses as much as digits as its factorization.

1220101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136035 (or 135968 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1220101222 is about 34929.9473518069. The cubic root of 1220101222 is about 1068.5592808935.

Adding to 1220101222 its reverse (2221010221), we get a palindrome (3441111443).

The spelling of 1220101222 in words is "one billion, two hundred twenty million, one hundred one thousand, two hundred twenty-two".