212210001112021 has 16 divisors (see below), whose sum is σ = 233795125915200. Its totient is φ = 191007113824000.

The previous prime is 212210001112003. The next prime is 212210001112093. The reversal of 212210001112021 is 120211100012212.

It is a cyclic number.

It is not a de Polignac number, because 212210001112021 - 2²⁹ = 212209464241109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212210001111986 and 212210001112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210001112121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292640790 + ... + 293365048.

It is an arithmetic number, because the mean of its divisors is an integer number (14612195369700).

Almost surely, 2^{212210001112021} is an apocalyptic number.

It is an amenable number.

212210001112021 is a deficient number, since it is larger than the sum of its proper divisors (21585124803179).

212210001112021 is a wasteful number, since it uses less digits than its factorization.

212210001112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988100.

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

Adding to 212210001112021 its reverse (120211100012212), we get a palindrome (332421101124233).

The spelling of 212210001112021 in words is "two hundred twelve trillion, two hundred ten billion, one million, one hundred twelve thousand, twenty-one".