212201212112021 has 8 divisors (see below), whose sum is σ = 231500083467744. Its totient is φ = 192903649435120.

The previous prime is 212201212112009. The next prime is 212201212112059. The reversal of 212201212112021 is 120211212102212.

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 212201212112021 - 2¹⁴ = 212201212095637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212201212111984 and 212201212112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201212102021) 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, 326830646 + ... + 327479271.

It is an arithmetic number, because the mean of its divisors is an integer number (28937510433468).

Almost surely, 2^{212201212112021} is an apocalyptic number.

It is an amenable number.

212201212112021 is a deficient number, since it is larger than the sum of its proper divisors (19298871355723).

212201212112021 is a wasteful number, since it uses less digits than its factorization.

212201212112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654339411.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212201212112021 its reverse (120211212102212), we get a palindrome (332412424214233).

The spelling of 212201212112021 in words is "two hundred twelve trillion, two hundred one billion, two hundred twelve million, one hundred twelve thousand, twenty-one".