212010201101121 has 16 divisors (see below), whose sum is σ = 282711467051520. Its totient is φ = 141324535537920.

The previous prime is 212010201101117. The next prime is 212010201101131. The reversal of 212010201101121 is 121101102010212.

It is a happy number.

It is not a de Polignac number, because 212010201101121 - 2² = 212010201101117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212010201101121.

It is not an unprimeable number, because it can be changed into a prime (212010201101131) 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, 1093522731 + ... + 1093716591.

It is an arithmetic number, because the mean of its divisors is an integer number (17669466690720).

Almost surely, 2^{212010201101121} is an apocalyptic number.

It is an amenable number.

212010201101121 is a deficient number, since it is larger than the sum of its proper divisors (70701265950399).

212010201101121 is a wasteful number, since it uses less digits than its factorization.

212010201101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232216.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212010201101121 its reverse (121101102010212), we get a palindrome (333111303111333).

Subtracting from 212010201101121 its reverse (121101102010212), we obtain a palindrome (90909099090909).

The spelling of 212010201101121 in words is "two hundred twelve trillion, ten billion, two hundred one million, one hundred one thousand, one hundred twenty-one".