120211102002121 has 4 divisors (see below), whose sum is σ = 129458109848452. Its totient is φ = 110964094155792.

The previous prime is 120211102002053. The next prime is 120211102002127. The reversal of 120211102002121 is 121200201112021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32404100851600 + 87807001150521 = 5692460^2 + 9370539^2 .

It is a cyclic number.

It is not a de Polignac number, because 120211102002121 - 2²⁷ = 120210967784393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120211102002095 and 120211102002104.

It is not an unprimeable number, because it can be changed into a prime (120211102002127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4623503923146 + ... + 4623503923171.

It is an arithmetic number, because the mean of its divisors is an integer number (32364527462113).

Almost surely, 2^{120211102002121} is an apocalyptic number.

It is an amenable number.

120211102002121 is a deficient number, since it is larger than the sum of its proper divisors (9247007846331).

120211102002121 is an equidigital number, since it uses as much as digits as its factorization.

120211102002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9247007846330.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120211102002121 its reverse (121200201112021), we get a palindrome (241411303114142).

The spelling of 120211102002121 in words is "one hundred twenty trillion, two hundred eleven billion, one hundred two million, two thousand, one hundred twenty-one".