2122210100212 has 24 divisors (see below), whose sum is σ = 3914421373800. Its totient is φ = 1005184742016.

The previous prime is 2122210100209. The next prime is 2122210100249. The reversal of 2122210100212 is 2120010122212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 194211201636 + 1927998898576 = 440694^2 + 1388524^2 .

It is a congruent number.

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, 172587387 + ... + 172599682.

It is an arithmetic number, because the mean of its divisors is an integer number (163100890575).

Almost surely, 2^{2122210100212} is an apocalyptic number.

It is an amenable number.

2122210100212 is a deficient number, since it is larger than the sum of its proper divisors (1792211273588).

2122210100212 is a wasteful number, since it uses less digits than its factorization.

2122210100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345187155 (or 345187153 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2122210100212 its reverse (2120010122212), we get a palindrome (4242220222424).

The spelling of 2122210100212 in words is "two trillion, one hundred twenty-two billion, two hundred ten million, one hundred thousand, two hundred twelve".