2111002021200 has 120 divisors (see below), whose sum is σ = 6807627900000. Its totient is φ = 559155745280.

The previous prime is 2111002021181. The next prime is 2111002021213. The reversal of 2111002021200 is 21202001112.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5724450 + ... + 6082049.

It is an arithmetic number, because the mean of its divisors is an integer number (56730232500).

Almost surely, 2^{2111002021200} is an apocalyptic number.

2111002021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111002021200 is an abundant number, since it is smaller than the sum of its proper divisors (4696625878800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111002021200 is a wasteful number, since it uses less digits than its factorization.

2111002021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11806669 (or 11806658 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2111002021200 its reverse (21202001112), we get a palindrome (2132204022312).

The spelling of 2111002021200 in words is "two trillion, one hundred eleven billion, two million, twenty-one thousand, two hundred".