2111212120102 has 16 divisors (see below), whose sum is σ = 3233631393072. Its totient is φ = 1033546089600.

The previous prime is 2111212120079. The next prime is 2111212120103. The reversal of 2111212120102 is 2010212121112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111212120103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52755024 + ... + 52795027.

It is an arithmetic number, because the mean of its divisors is an integer number (202101962067).

Almost surely, 2^{2111212120102} is an apocalyptic number.

2111212120102 is a deficient number, since it is larger than the sum of its proper divisors (1122419272970).

2111212120102 is a wasteful number, since it uses less digits than its factorization.

2111212120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105550263.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2111212120102 its reverse (2010212121112), we get a palindrome (4121424241214).

The spelling of 2111212120102 in words is "two trillion, one hundred eleven billion, two hundred twelve million, one hundred twenty thousand, one hundred two".