212102021221210 has 16 divisors (see below), whose sum is σ = 382043178427392. Its totient is φ = 84783132882000.

The previous prime is 212102021221201. The next prime is 212102021221249. The reversal of 212102021221210 is 12122120201212.

212102021221210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212102021221210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7209435366 + ... + 7209464785.

It is an arithmetic number, because the mean of its divisors is an integer number (23877698651712).

Almost surely, 2^{212102021221210} is an apocalyptic number.

212102021221210 is a deficient number, since it is larger than the sum of its proper divisors (169941157206182).

212102021221210 is a wasteful number, since it uses less digits than its factorization.

212102021221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14418901629.

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

Adding to 212102021221210 its reverse (12122120201212), we get a palindrome (224224141422422).

The spelling of 212102021221210 in words is "two hundred twelve trillion, one hundred two billion, twenty-one million, two hundred twenty-one thousand, two hundred ten".