212021111102 has 16 divisors (see below), whose sum is σ = 325617071472. Its totient is φ = 103484955840.

The previous prime is 212021111083. The next prime is 212021111123. The reversal of 212021111102 is 201111120212.

It is a congruent number.

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, 568253 + ... + 864264.

It is an arithmetic number, because the mean of its divisors is an integer number (20351066967).

Almost surely, 2^212021111102 is an apocalyptic number.

212021111102 is a deficient number, since it is larger than the sum of its proper divisors (113595960370).

212021111102 is a wasteful number, since it uses less digits than its factorization.

212021111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434283.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212021111102 its reverse (201111120212), we get a palindrome (413132231314).

The spelling of 212021111102 in words is "two hundred twelve billion, twenty-one million, one hundred eleven thousand, one hundred two".