101212103021 has 8 divisors (see below), whose sum is σ = 101685907200. Its totient is φ = 100738576080.

The previous prime is 101212103017. The next prime is 101212103053. The reversal of 101212103021 is 120301212101.

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 101212103021 - 2² = 101212103017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101212102987 and 101212103005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212103521) 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, 681500 + ... + 816618.

It is an arithmetic number, because the mean of its divisors is an integer number (12710738400).

Almost surely, 2^101212103021 is an apocalyptic number.

It is an amenable number.

101212103021 is a deficient number, since it is larger than the sum of its proper divisors (473804179).

101212103021 is a wasteful number, since it uses less digits than its factorization.

101212103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138619.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 101212103021 its reverse (120301212101), we get a palindrome (221513315122).

The spelling of 101212103021 in words is "one hundred one billion, two hundred twelve million, one hundred three thousand, twenty-one".