212010101212021 has 32 divisors (see below), whose sum is σ = 253153394278400. Its totient is φ = 177383537836848.

The previous prime is 212010101212009. The next prime is 212010101212031. The reversal of 212010101212021 is 120212101010212.

It is not a de Polignac number, because 212010101212021 - 2²⁹ = 212009564341109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212010101211986 and 212010101212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010101212031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18525040 + ... + 27698326.

It is an arithmetic number, because the mean of its divisors is an integer number (7911043571200).

Almost surely, 2^{212010101212021} is an apocalyptic number.

It is an amenable number.

212010101212021 is a deficient number, since it is larger than the sum of its proper divisors (41143293066379).

212010101212021 is an equidigital number, since it uses as much as digits as its factorization.

212010101212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9174918 (or 9174904 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212010101212021 its reverse (120212101010212), we get a palindrome (332222202222233).

The spelling of 212010101212021 in words is "two hundred twelve trillion, ten billion, one hundred one million, two hundred twelve thousand, twenty-one".