212001001202121 has 32 divisors (see below), whose sum is σ = 290738643148800. Its totient is φ = 137327064681600.

The previous prime is 212001001202101. The next prime is 212001001202161. The reversal of 212001001202121 is 121202100100212.

It is not a de Polignac number, because 212001001202121 - 2¹¹ = 212001001200073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212001001202121.

It is not an unprimeable number, because it can be changed into a prime (212001001202101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88787536 + ... + 91143998.

It is an arithmetic number, because the mean of its divisors is an integer number (9085582598400).

Almost surely, 2^{212001001202121} is an apocalyptic number.

It is an amenable number.

212001001202121 is a deficient number, since it is larger than the sum of its proper divisors (78737641946679).

212001001202121 is a wasteful number, since it uses less digits than its factorization.

212001001202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359477.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212001001202121 its reverse (121202100100212), we get a palindrome (333203101302333).

The spelling of 212001001202121 in words is "two hundred twelve trillion, one billion, one million, two hundred two thousand, one hundred twenty-one".