100212010221 has 16 divisors (see below), whose sum is σ = 139291826688. Its totient is φ = 64012776000.

The previous prime is 100212010219. The next prime is 100212010243. The reversal of 100212010221 is 122010212001.

It is not a de Polignac number, because 100212010221 - 2¹ = 100212010219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100212010197 and 100212010206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100212010721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5325006 + ... + 5343791.

It is an arithmetic number, because the mean of its divisors is an integer number (8705739168).

Almost surely, 2^100212010221 is an apocalyptic number.

It is an amenable number.

100212010221 is a deficient number, since it is larger than the sum of its proper divisors (39079816467).

100212010221 is a wasteful number, since it uses less digits than its factorization.

100212010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10668932.

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

Adding to 100212010221 its reverse (122010212001), we get a palindrome (222222222222).

The spelling of 100212010221 in words is "one hundred billion, two hundred twelve million, ten thousand, two hundred twenty-one".