212102012101 has 8 divisors (see below), whose sum is σ = 243741540224. Its totient is φ = 180797294160.

The previous prime is 212102012069. The next prime is 212102012117. The reversal of 212102012101 is 101210201212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212102012101 - 2⁵ = 212102012069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102012401) 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, 83701185 + ... + 83703718.

It is an arithmetic number, because the mean of its divisors is an integer number (30467692528).

Almost surely, 2^212102012101 is an apocalyptic number.

It is an amenable number.

212102012101 is a deficient number, since it is larger than the sum of its proper divisors (31639528123).

212102012101 is a wasteful number, since it uses less digits than its factorization.

212102012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167405091.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212102012101 its reverse (101210201212), we get a palindrome (313312213313).

The spelling of 212102012101 in words is "two hundred twelve billion, one hundred two million, twelve thousand, one hundred one".