1213212022 has 16 divisors (see below), whose sum is σ = 1985846544. Its totient is φ = 551296000.

The previous prime is 1213211999. The next prime is 1213212023. The reversal of 1213212022 is 2202123121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1213211987 and 1213212005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213212023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98022 + ... + 109702.

It is an arithmetic number, because the mean of its divisors is an integer number (124115409).

Almost surely, 2^1213212022 is an apocalyptic number.

1213212022 is a deficient number, since it is larger than the sum of its proper divisors (772634522).

1213212022 is a wasteful number, since it uses less digits than its factorization.

1213212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16415.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1213212022 is about 34831.1932325035. The cubic root of 1213212022 is about 1066.5443066457.

Adding to 1213212022 its reverse (2202123121), we get a palindrome (3415335143).

The spelling of 1213212022 in words is "one billion, two hundred thirteen million, two hundred twelve thousand, twenty-two".