212110212010121 has 8 divisors (see below), whose sum is σ = 225048448166400. Its totient is φ = 199223216394048.

The previous prime is 212110212010093. The next prime is 212110212010139. The reversal of 212110212010121 is 121010212011212.

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

It is a cyclic number.

It is not a de Polignac number, because 212110212010121 - 2³⁴ = 212093032140937 is a prime.

It is a super-2 number, since 2×212110212010121² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212110212010121.

It is not an unprimeable number, because it can be changed into a prime (212110212016121) 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, 12810126521 + ... + 12810143078.

It is an arithmetic number, because the mean of its divisors is an integer number (28131056020800).

Almost surely, 2^{212110212010121} is an apocalyptic number.

It is an amenable number.

212110212010121 is a deficient number, since it is larger than the sum of its proper divisors (12938236156279).

212110212010121 is a wasteful number, since it uses less digits than its factorization.

212110212010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25620270103.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212110212010121 its reverse (121010212011212), we get a palindrome (333120424021333).

The spelling of 212110212010121 in words is "two hundred twelve trillion, one hundred ten billion, two hundred twelve million, ten thousand, one hundred twenty-one".