1011220222 has 4 divisors (see below), whose sum is σ = 1516830336. Its totient is φ = 505610110.

The previous prime is 1011220193. The next prime is 1011220229. The reversal of 1011220222 is 2220221101.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011220229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252805054 + ... + 252805057.

It is an arithmetic number, because the mean of its divisors is an integer number (379207584).

Almost surely, 2^1011220222 is an apocalyptic number.

1011220222 is a deficient number, since it is larger than the sum of its proper divisors (505610114).

1011220222 is an equidigital number, since it uses as much as digits as its factorization.

1011220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505610113.

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

The square root of 1011220222 is about 31799.6890236367. The cubic root of 1011220222 is about 1003.7261723941.

Adding to 1011220222 its reverse (2220221101), we get a palindrome (3231441323).

The spelling of 1011220222 in words is "one billion, eleven million, two hundred twenty thousand, two hundred twenty-two".