2111020021200 has 480 divisors, whose sum is σ = 7089773225472. Its totient is φ = 536373248000.

The previous prime is 2111020021199. The next prime is 2111020021213. The reversal of 2111020021200 is 21200201112.

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 95 ways as a sum of consecutive naturals, for example, 1787484610 + ... + 1787485790.

Almost surely, 2^{2111020021200} is an apocalyptic number.

2111020021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111020021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3544886612736).

2111020021200 is an abundant number, since it is smaller than the sum of its proper divisors (4978753204272).

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

2111020021200 is a wasteful number, since it uses less digits than its factorization.

2111020021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063 (or 2052 counting only the distinct ones).

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

Adding to 2111020021200 its reverse (21200201112), we get a palindrome (2132220222312).

The spelling of 2111020021200 in words is "two trillion, one hundred eleven billion, twenty million, twenty-one thousand, two hundred".