120210011222121 has 12 divisors (see below), whose sum is σ = 183850605398772. Its totient is φ = 75425889394176.

The previous prime is 120210011222113. The next prime is 120210011222149. The reversal of 120210011222121 is 121222110012021.

120210011222121 is a `hidden beast` number, since 120 + 210 + 0 + 1 + 122 + 212 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 47212894714896 + 72997116507225 = 6871164^2 + 8543835^2 .

It is not a de Polignac number, because 120210011222121 - 2³ = 120210011222113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120210011222094 and 120210011222103.

It is not an unprimeable number, because it can be changed into a prime (120210011222101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392843173776 + ... + 392843174081.

It is an arithmetic number, because the mean of its divisors is an integer number (15320883783231).

Almost surely, 2^{120210011222121} is an apocalyptic number.

It is an amenable number.

120210011222121 is a deficient number, since it is larger than the sum of its proper divisors (63640594176651).

120210011222121 is a wasteful number, since it uses less digits than its factorization.

120210011222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785686347880 (or 785686347877 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120210011222121 its reverse (121222110012021), we get a palindrome (241432121234142).

The spelling of 120210011222121 in words is "one hundred twenty trillion, two hundred ten billion, eleven million, two hundred twenty-two thousand, one hundred twenty-one".