212011102120001 has 4 divisors (see below), whose sum is σ = 212011131847104. Its totient is φ = 212011072392900.

The previous prime is 212011102119979. The next prime is 212011102120067. The reversal of 212011102120001 is 100021201110212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 212011102120001 - 2³⁰ = 212010028378177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212011102120201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2953316 + ... + 20802506.

It is an arithmetic number, because the mean of its divisors is an integer number (53002782961776).

Almost surely, 2^{212011102120001} is an apocalyptic number.

It is an amenable number.

212011102120001 is a deficient number, since it is larger than the sum of its proper divisors (29727103).

212011102120001 is a wasteful number, since it uses less digits than its factorization.

212011102120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29727102.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212011102120001 its reverse (100021201110212), we get a palindrome (312032303230213).

The spelling of 212011102120001 in words is "two hundred twelve trillion, eleven billion, one hundred two million, one hundred twenty thousand, one".