2121111100102 has 8 divisors (see below), whose sum is σ = 3181683457512. Its totient is φ = 1060549947600.

The previous prime is 2121111100063. The next prime is 2121111100133. The reversal of 2121111100102 is 2010011111212.

It is a happy number.

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

It is a super-2 number, since 2×2121111100102² (a number of 25 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2310799 + ... + 3095482.

It is an arithmetic number, because the mean of its divisors is an integer number (397710432189).

Almost surely, 2^{2121111100102} is an apocalyptic number.

2121111100102 is a deficient number, since it is larger than the sum of its proper divisors (1060572357410).

2121111100102 is a wasteful number, since it uses less digits than its factorization.

2121111100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602454.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2121111100102 its reverse (2010011111212), we get a palindrome (4131122211314).

The spelling of 2121111100102 in words is "two trillion, one hundred twenty-one billion, one hundred eleven million, one hundred thousand, one hundred two".