2120111021102 has 16 divisors (see below), whose sum is σ = 3369191801472. Its totient is φ = 997119555840.

The previous prime is 2120111021057. The next prime is 2120111021113. The reversal of 2120111021102 is 2011201110212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18057758 + ... + 18174785.

It is an arithmetic number, because the mean of its divisors is an integer number (210574487592).

Almost surely, 2^{2120111021102} is an apocalyptic number.

2120111021102 is a deficient number, since it is larger than the sum of its proper divisors (1249080780370).

2120111021102 is a wasteful number, since it uses less digits than its factorization.

2120111021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36234283.

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

Adding to 2120111021102 its reverse (2011201110212), we get a palindrome (4131312131314).

It can be divided in two parts, 21201110 and 21102, that added together give a palindrome (21222212).

The spelling of 2120111021102 in words is "two trillion, one hundred twenty billion, one hundred eleven million, twenty-one thousand, one hundred two".