1213202023122 has 16 divisors (see below), whose sum is σ = 2426426399232. Its totient is φ = 404396948880.

The previous prime is 1213202023063. The next prime is 1213202023129. The reversal of 1213202023122 is 2213202023121.

It is not an unprimeable number, because it can be changed into a prime (1213202023129) 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, 179058 + ... + 1567949.

It is an arithmetic number, because the mean of its divisors is an integer number (151651649952).

Almost surely, 2^{1213202023122} is an apocalyptic number.

1213202023122 is an abundant number, since it is smaller than the sum of its proper divisors (1213224376110).

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

1213202023122 is a wasteful number, since it uses less digits than its factorization.

1213202023122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862753.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1213202023122 its reverse (2213202023121), we get a palindrome (3426404046243).

Subtracting 1213202023122 from its reverse (2213202023121), we obtain a palindrome (999999999999).

The spelling of 1213202023122 in words is "one trillion, two hundred thirteen billion, two hundred two million, twenty-three thousand, one hundred twenty-two".