1212423022 has 32 divisors (see below), whose sum is σ = 1953504000. Its totient is φ = 562655808.

The previous prime is 1212423019. The next prime is 1212423029. The reversal of 1212423022 is 2203242121.

It is a super-2 number, since 2×1212423022² = 2939939168551224968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212423029) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 505458 + ... + 507850.

It is an arithmetic number, because the mean of its divisors is an integer number (61047000).

Almost surely, 2^1212423022 is an apocalyptic number.

1212423022 is a deficient number, since it is larger than the sum of its proper divisors (741080978).

1212423022 is a wasteful number, since it uses less digits than its factorization.

1212423022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1212423022 is about 34819.8653357534. The cubic root of 1212423022 is about 1066.3130511219.

Adding to 1212423022 its reverse (2203242121), we get a palindrome (3415665143).

The spelling of 1212423022 in words is "one billion, two hundred twelve million, four hundred twenty-three thousand, twenty-two".