212101221002 has 16 divisors (see below), whose sum is σ = 365341816800. Its totient is φ = 91335453840.

The previous prime is 212101220999. The next prime is 212101221049. The reversal of 212101221002 is 200122101212.

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, 253709177 + ... + 253710012.

It is an arithmetic number, because the mean of its divisors is an integer number (22833863550).

Almost surely, 2^212101221002 is an apocalyptic number.

212101221002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212101221002 is a deficient number, since it is larger than the sum of its proper divisors (153240595798).

212101221002 is a wasteful number, since it uses less digits than its factorization.

212101221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507419221.

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

Adding to 212101221002 its reverse (200122101212), we get a palindrome (412223322214).

The spelling of 212101221002 in words is "two hundred twelve billion, one hundred one million, two hundred twenty-one thousand, two".