2121022012110 has 16 divisors (see below), whose sum is σ = 5090452829136. Its totient is φ = 565605869888.

The previous prime is 2121022012103. The next prime is 2121022012147. The reversal of 2121022012110 is 112102201212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2121022012110.

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, 35350366839 + ... + 35350366898.

It is an arithmetic number, because the mean of its divisors is an integer number (318153301821).

Almost surely, 2^{2121022012110} is an apocalyptic number.

2121022012110 is an abundant number, since it is smaller than the sum of its proper divisors (2969430817026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121022012110 is a wasteful number, since it uses less digits than its factorization.

2121022012110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70700733747.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2121022012110 its reverse (112102201212), we get a palindrome (2233124213322).

The spelling of 2121022012110 in words is "two trillion, one hundred twenty-one billion, twenty-two million, twelve thousand, one hundred ten".