212100001020222 has 32 divisors (see below), whose sum is σ = 497902705101312. Its totient is φ = 58962162445344.

The previous prime is 212100001020221. The next prime is 212100001020253. The reversal of 212100001020222 is 222020100001212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100001020221) 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, 68243242018 + ... + 68243245125.

It is an arithmetic number, because the mean of its divisors is an integer number (15559459534416).

Almost surely, 2^{212100001020222} is an apocalyptic number.

212100001020222 is an abundant number, since it is smaller than the sum of its proper divisors (285802704081090).

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

212100001020222 is a wasteful number, since it uses less digits than its factorization.

212100001020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136486487192.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212100001020222 its reverse (222020100001212), we get a palindrome (434120101021434).

The spelling of 212100001020222 in words is "two hundred twelve trillion, one hundred billion, one million, twenty thousand, two hundred twenty-two".