1213120213122 has 16 divisors (see below), whose sum is σ = 2426454309312. Its totient is φ = 404337757200.

The previous prime is 1213120213117. The next prime is 1213120213133. The reversal of 1213120213122 is 2213120213121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8838013 + ... + 8974224.

It is an arithmetic number, because the mean of its divisors is an integer number (151653394332).

Almost surely, 2^{1213120213122} is an apocalyptic number.

1213120213122 is an abundant number, since it is smaller than the sum of its proper divisors (1213334096190).

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

1213120213122 is a wasteful number, since it uses less digits than its factorization.

1213120213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17823593.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1213120213122 its reverse (2213120213121), we get a palindrome (3426240426243).

Subtracting 1213120213122 from its reverse (2213120213121), we obtain a palindrome (999999999999).

The spelling of 1213120213122 in words is "one trillion, two hundred thirteen billion, one hundred twenty million, two hundred thirteen thousand, one hundred twenty-two".