2111220001200 has 60 divisors (see below), whose sum is σ = 6762941407688. Its totient is φ = 562992000000.

The previous prime is 2111220001181. The next prime is 2111220001207. The reversal of 2111220001200 is 21000221112.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is not an unprimeable number, because it can be changed into a prime (2111220001207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 879673801 + ... + 879676200.

Almost surely, 2^{2111220001200} is an apocalyptic number.

2111220001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111220001200 is an abundant number, since it is smaller than the sum of its proper divisors (4651721406488).

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

2111220001200 is a wasteful number, since it uses less digits than its factorization.

2111220001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759350022 (or 1759350011 counting only the distinct ones).

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

Adding to 2111220001200 its reverse (21000221112), we get a palindrome (2132220222312).

The spelling of 2111220001200 in words is "two trillion, one hundred eleven billion, two hundred twenty million, one thousand, two hundred".