212100222010 has 16 divisors (see below), whose sum is σ = 382240945800. Its totient is φ = 84737745216.

The previous prime is 212100221987. The next prime is 212100222031. The reversal of 212100222010 is 10222001212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 192069198049 + 20031023961 = 438257^2 + 141531^2 .

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, 12784245 + ... + 12800824.

Almost surely, 2^212100222010 is an apocalyptic number.

212100222010 is a deficient number, since it is larger than the sum of its proper divisors (170140723790).

212100222010 is a wasteful number, since it uses less digits than its factorization.

212100222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25585905.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212100222010 its reverse (10222001212), we get a palindrome (222322223222).

The spelling of 212100222010 in words is "two hundred twelve billion, one hundred million, two hundred twenty-two thousand, ten".