1011231222 has 32 divisors (see below), whose sum is σ = 2090271744. Its totient is φ = 325802400.

The previous prime is 1011231197. The next prime is 1011231223. The reversal of 1011231222 is 2221321101.

It is a super-2 number, since 2×1011231222² = 2045177168695226568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011231223) 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, 173272 + ... + 179012.

It is an arithmetic number, because the mean of its divisors is an integer number (65320992).

Almost surely, 2^1011231222 is an apocalyptic number.

1011231222 is an abundant number, since it is smaller than the sum of its proper divisors (1079040522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011231222 is a wasteful number, since it uses less digits than its factorization.

1011231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1011231222 is about 31799.8619808326. The cubic root of 1011231222 is about 1003.7298118743.

Adding to 1011231222 its reverse (2221321101), we get a palindrome (3232552323).

The spelling of 1011231222 in words is "one billion, eleven million, two hundred thirty-one thousand, two hundred twenty-two".