1201111222 has 16 divisors (see below), whose sum is σ = 1822148640. Its totient is φ = 593747712.

The previous prime is 1201111141. The next prime is 1201111243. The reversal of 1201111222 is 2221111021.

It is a super-2 number, since 2×1201111222² = 2885336335228666568, which contains 22 as substring.

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, 130054 + ... + 138982.

It is an arithmetic number, because the mean of its divisors is an integer number (113884290).

Almost surely, 2^1201111222 is an apocalyptic number.

1201111222 is a deficient number, since it is larger than the sum of its proper divisors (621037418).

1201111222 is a wasteful number, since it uses less digits than its factorization.

1201111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9687.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1201111222 is about 34657.0515479895. The cubic root of 1201111222 is about 1062.9864817581.

Adding to 1201111222 its reverse (2221111021), we get a palindrome (3422222243).

The spelling of 1201111222 in words is "one billion, two hundred one million, one hundred eleven thousand, two hundred twenty-two".