1211202102122 has 8 divisors (see below), whose sum is σ = 1816807944672. Its totient is φ = 605599453900.

The previous prime is 1211202102023. The next prime is 1211202102203. The reversal of 1211202102122 is 2212012021121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1211202102122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749747 + ... + 1727577.

It is an arithmetic number, because the mean of its divisors is an integer number (227100993084).

Almost surely, 2^{1211202102122} is an apocalyptic number.

1211202102122 is a deficient number, since it is larger than the sum of its proper divisors (605605842550).

1211202102122 is an equidigital number, since it uses as much as digits as its factorization.

1211202102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597164.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1211202102122 its reverse (2212012021121), we get a palindrome (3423214123243).

The spelling of 1211202102122 in words is "one trillion, two hundred eleven billion, two hundred two million, one hundred two thousand, one hundred twenty-two".