1213020102122 has 4 divisors (see below), whose sum is σ = 1819530153186. Its totient is φ = 606510051060.

The previous prime is 1213020102083. The next prime is 1213020102181. The reversal of 1213020102122 is 2212010203121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 746010510961 + 467009591161 = 863719^2 + 683381^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1213020102122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303255025529 + ... + 303255025532.

Almost surely, 2^{1213020102122} is an apocalyptic number.

1213020102122 is a deficient number, since it is larger than the sum of its proper divisors (606510051064).

1213020102122 is an equidigital number, since it uses as much as digits as its factorization.

1213020102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606510051063.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1213020102122 its reverse (2212010203121), we get a palindrome (3425030305243).

The spelling of 1213020102122 in words is "one trillion, two hundred thirteen billion, twenty million, one hundred two thousand, one hundred twenty-two".