212021121110 has 16 divisors (see below), whose sum is σ = 381648607200. Its totient is φ = 84806095296.

The previous prime is 212021121107. The next prime is 212021121131. The reversal of 212021121110 is 11121120212.

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, 110831 + ... + 660549.

It is an arithmetic number, because the mean of its divisors is an integer number (23853037950).

Almost surely, 2^212021121110 is an apocalyptic number.

212021121110 is a deficient number, since it is larger than the sum of its proper divisors (169627486090).

212021121110 is a wasteful number, since it uses less digits than its factorization.

212021121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588295.

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

Adding to 212021121110 its reverse (11121120212), we get a palindrome (223142241322).

The spelling of 212021121110 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, one hundred ten".