1222311046 has 32 divisors (see below), whose sum is σ = 2076295680. Its totient is φ = 534832800.

The previous prime is 1222311029. The next prime is 1222311047. The reversal of 1222311046 is 6401132221.

It is a super-2 number, since 2×1222311046² = 2988088586347228232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222311047) 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, 53385 + ... + 72763.

It is an arithmetic number, because the mean of its divisors is an integer number (64884240).

Almost surely, 2^1222311046 is an apocalyptic number.

1222311046 is a deficient number, since it is larger than the sum of its proper divisors (853984634).

1222311046 is a wasteful number, since it uses less digits than its factorization.

1222311046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19500.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1222311046 is about 34961.5652681627. The cubic root of 1222311046 is about 1069.2040098545.

Adding to 1222311046 its reverse (6401132221), we get a palindrome (7623443267).

The spelling of 1222311046 in words is "one billion, two hundred twenty-two million, three hundred eleven thousand, forty-six".