2121001100110 has 16 divisors (see below), whose sum is σ = 3818328486336. Its totient is φ = 848283438688.

The previous prime is 2121001100077. The next prime is 2121001100171. The reversal of 2121001100110 is 110011001212.

It is a Harshad number since it is a multiple of its sum of digits (10).

2121001100110 is a modest number, since divided by 1100110 gives 21210 as remainder.

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, 14549014 + ... + 14694073.

It is an arithmetic number, because the mean of its divisors is an integer number (238645530396).

Almost surely, 2^{2121001100110} is an apocalyptic number.

2121001100110 is a deficient number, since it is larger than the sum of its proper divisors (1697327386226).

2121001100110 is a wasteful number, since it uses less digits than its factorization.

2121001100110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29250347.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2121001100110 its reverse (110011001212), we get a palindrome (2231012101322).

The spelling of 2121001100110 in words is "two trillion, one hundred twenty-one billion, one million, one hundred thousand, one hundred ten".