212002112222121 has 8 divisors (see below), whose sum is σ = 304413289344640. Its totient is φ = 130462838290512.

The previous prime is 212002112222111. The next prime is 212002112222149. The reversal of 212002112222121 is 121222211200212.

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

It is not a de Polignac number, because 212002112222121 - 2³¹ = 211999964738473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212002112222111) 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, 2717975797681 + ... + 2717975797758.

It is an arithmetic number, because the mean of its divisors is an integer number (38051661168080).

Almost surely, 2^{212002112222121} is an apocalyptic number.

It is an amenable number.

212002112222121 is a deficient number, since it is larger than the sum of its proper divisors (92411177122519).

212002112222121 is a wasteful number, since it uses less digits than its factorization.

212002112222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5435951595455.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212002112222121 its reverse (121222211200212), we get a palindrome (333224323422333).

The spelling of 212002112222121 in words is "two hundred twelve trillion, two billion, one hundred twelve million, two hundred twenty-two thousand, one hundred twenty-one".