212110022201210 has 48 divisors (see below), whose sum is σ = 444134254570920. Its totient is φ = 72723134776320.

The previous prime is 212110022201159. The next prime is 212110022201219. The reversal of 212110022201210 is 12102220011212.

It can be written as a sum of positive squares in 4 ways, for example, as 198706434890929 + 13403587310281 = 14096327^2 + 3661091^2 .

It is not an unprimeable number, because it can be changed into a prime (212110022201219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140014286 + ... + 141521094.

Almost surely, 2^{212110022201210} is an apocalyptic number.

212110022201210 is an abundant number, since it is smaller than the sum of its proper divisors (232024232369710).

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

212110022201210 is a wasteful number, since it uses less digits than its factorization.

212110022201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794111 (or 1794104 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212110022201210 its reverse (12102220011212), we get a palindrome (224212242212422).

The spelling of 212110022201210 in words is "two hundred twelve trillion, one hundred ten billion, twenty-two million, two hundred one thousand, two hundred ten".