2121012111110 has 16 divisors (see below), whose sum is σ = 3910939405632. Its totient is φ = 827712043200.

The previous prime is 2121012111091. The next prime is 2121012111121. The reversal of 2121012111110 is 111112101212.

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, 2586599726 + ... + 2586600545.

It is an arithmetic number, because the mean of its divisors is an integer number (244433712852).

Almost surely, 2^{2121012111110} is an apocalyptic number.

2121012111110 is a deficient number, since it is larger than the sum of its proper divisors (1789927294522).

2121012111110 is a wasteful number, since it uses less digits than its factorization.

2121012111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173200319.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2121012111110 its reverse (111112101212), we get a palindrome (2232124212322).

The spelling of 2121012111110 in words is "two trillion, one hundred twenty-one billion, twelve million, one hundred eleven thousand, one hundred ten".