212011121101 has 8 divisors (see below), whose sum is σ = 228466143360. Its totient is φ = 195577023792.

The previous prime is 212011121093. The next prime is 212011121143. The reversal of 212011121101 is 101121110212.

It is a happy number.

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 212011121101 - 2³ = 212011121093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011122101) 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, 5210185 + ... + 5250718.

It is an arithmetic number, because the mean of its divisors is an integer number (28558267920).

Almost surely, 2^212011121101 is an apocalyptic number.

It is an amenable number.

212011121101 is a deficient number, since it is larger than the sum of its proper divisors (16455022259).

212011121101 is a wasteful number, since it uses less digits than its factorization.

212011121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10462475.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 212011121101 its reverse (101121110212), we get a palindrome (313132231313).

The spelling of 212011121101 in words is "two hundred twelve billion, eleven million, one hundred twenty-one thousand, one hundred one".