212100021020210 has 32 divisors (see below), whose sum is σ = 382518024754752. Its totient is φ = 84676018109760.

The previous prime is 212100021020089. The next prime is 212100021020243. The reversal of 212100021020210 is 12020120001212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265394837 + ... + 266192823.

It is an arithmetic number, because the mean of its divisors is an integer number (11953688273586).

Almost surely, 2^{212100021020210} is an apocalyptic number.

212100021020210 is a deficient number, since it is larger than the sum of its proper divisors (170418003734542).

212100021020210 is a wasteful number, since it uses less digits than its factorization.

212100021020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849338.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212100021020210 its reverse (12020120001212), we get a palindrome (224120141021422).

The spelling of 212100021020210 in words is "two hundred twelve trillion, one hundred billion, twenty-one million, twenty thousand, two hundred ten".