2021000101212 has 24 divisors (see below), whose sum is σ = 4867785190912. Its totient is φ = 651935516400.

The previous prime is 2021000101207. The next prime is 2021000101213. The reversal of 2021000101212 is 2121010001202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021000101213) 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, 2716397614 + ... + 2716398357.

Almost surely, 2^{2021000101212} is an apocalyptic number.

It is an amenable number.

2021000101212 is an abundant number, since it is smaller than the sum of its proper divisors (2846785089700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021000101212 is a wasteful number, since it uses less digits than its factorization.

2021000101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5432796009 (or 5432796007 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2021000101212 its reverse (2121010001202), we get a palindrome (4142010102414).

It can be divided in two parts, 2021000 and 101212, that added together give a palindrome (2122212).

The spelling of 2021000101212 in words is "two trillion, twenty-one billion, one hundred one thousand, two hundred twelve".