2111110202121 has 8 divisors (see below), whose sum is σ = 2874703254144. Its totient is φ = 1377461975760.

The previous prime is 2111110202119. The next prime is 2111110202143. The reversal of 2111110202121 is 1212020111112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111110202121 - 2¹ = 2111110202119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111110202121.

It is not an unprimeable number, because it can be changed into a prime (2111110202021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7486206250 + ... + 7486206531.

It is an arithmetic number, because the mean of its divisors is an integer number (359337906768).

Almost surely, 2^{2111110202121} is an apocalyptic number.

It is an amenable number.

2111110202121 is a deficient number, since it is larger than the sum of its proper divisors (763593052023).

2111110202121 is a wasteful number, since it uses less digits than its factorization.

2111110202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14972412831.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2111110202121 its reverse (1212020111112), we get a palindrome (3323130313233).

The spelling of 2111110202121 in words is "two trillion, one hundred eleven billion, one hundred ten million, two hundred two thousand, one hundred twenty-one".