212010221222101 has 32 divisors (see below), whose sum is σ = 231774509417472. Its totient is φ = 193152163061760.

The previous prime is 212010221222057. The next prime is 212010221222113. The reversal of 212010221222101 is 101222122010212.

It is a cyclic number.

It is not a de Polignac number, because 212010221222101 - 2²⁹ = 212009684351189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010221222131) 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, 116201835 + ... + 118012231.

It is an arithmetic number, because the mean of its divisors is an integer number (7242953419296).

Almost surely, 2^{212010221222101} is an apocalyptic number.

It is an amenable number.

212010221222101 is a deficient number, since it is larger than the sum of its proper divisors (19764288195371).

212010221222101 is a wasteful number, since it uses less digits than its factorization.

212010221222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812069.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212010221222101 its reverse (101222122010212), we get a palindrome (313232343232313).

The spelling of 212010221222101 in words is "two hundred twelve trillion, ten billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred one".