212211021121101 has 48 divisors (see below), whose sum is σ = 325775032627200. Its totient is φ = 132859786114944.

The previous prime is 212211021121061. The next prime is 212211021121153. The reversal of 212211021121101 is 101121120112212.

It is a happy number.

212211021121101 is a `hidden beast` number, since 21 + 221 + 1 + 0 + 211 + 211 + 0 + 1 = 666.

It is not a de Polignac number, because 212211021121101 - 2⁶ = 212211021121037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212211021120101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25515060 + ... + 32793906.

It is an arithmetic number, because the mean of its divisors is an integer number (6786979846400).

Almost surely, 2^{212211021121101} is an apocalyptic number.

It is an amenable number.

212211021121101 is a deficient number, since it is larger than the sum of its proper divisors (113564011506099).

212211021121101 is a wasteful number, since it uses less digits than its factorization.

212211021121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7281938 (or 7281935 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 212211021121101 its reverse (101121120112212), we get a palindrome (313332141233313).

The spelling of 212211021121101 in words is "two hundred twelve trillion, two hundred eleven billion, twenty-one million, one hundred twenty-one thousand, one hundred one".