212010221221210 has 128 divisors (see below), whose sum is σ = 417646721134080. Its totient is φ = 77235515191296.

The previous prime is 212010221221157. The next prime is 212010221221219. The reversal of 212010221221210 is 12122122010212.

It is not an unprimeable number, because it can be changed into a prime (212010221221219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3736032057 + ... + 3736088803.

It is an arithmetic number, because the mean of its divisors is an integer number (3262865008860).

Almost surely, 2^{212010221221210} is an apocalyptic number.

212010221221210 is a deficient number, since it is larger than the sum of its proper divisors (205636499912870).

212010221221210 is a wasteful number, since it uses less digits than its factorization.

212010221221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64552.

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

Adding to 212010221221210 its reverse (12122122010212), we get a palindrome (224132343231422).

The spelling of 212010221221210 in words is "two hundred twelve trillion, ten billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred ten".