212100020210 has 64 divisors (see below), whose sum is σ = 416323805184. Its totient is φ = 77333952000.

The previous prime is 212100020203. The next prime is 212100020233. The reversal of 212100020210 is 12020001212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212100020191 and 212100020200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3370535 + ... + 3432885.

It is an arithmetic number, because the mean of its divisors is an integer number (6505059456).

Almost surely, 2^212100020210 is an apocalyptic number.

212100020210 is a deficient number, since it is larger than the sum of its proper divisors (204223784974).

212100020210 is a wasteful number, since it uses less digits than its factorization.

212100020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62699.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 212100020210 its reverse (12020001212), we get a palindrome (224120021422).

The spelling of 212100020210 in words is "two hundred twelve billion, one hundred million, twenty thousand, two hundred ten".