20212102220210 has 16 divisors (see below), whose sum is σ = 36381854616192. Its totient is φ = 8084825194800.

The previous prime is 20212102220207. The next prime is 20212102220341. The reversal of 20212102220210 is 1202220121202.

It is a happy number.

It is a super-2 number, since 2×20212102220210² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4443665 + ... + 7756955.

It is an arithmetic number, because the mean of its divisors is an integer number (2273865913512).

Almost surely, 2^{20212102220210} is an apocalyptic number.

20212102220210 is a deficient number, since it is larger than the sum of its proper divisors (16169752395982).

20212102220210 is a wasteful number, since it uses less digits than its factorization.

20212102220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923329.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20212102220210 its reverse (1202220121202), we get a palindrome (21414322341412).

The spelling of 20212102220210 in words is "twenty trillion, two hundred twelve billion, one hundred two million, two hundred twenty thousand, two hundred ten".