20011110221200 has 60 divisors (see below), whose sum is σ = 54944791215040. Its totient is φ = 6860952074880.

The previous prime is 20011110221197. The next prime is 20011110221257. The reversal of 20011110221200 is 212201111002.

It is a super-2 number, since 2×20011110221200² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3573409740 + ... + 3573415339.

Almost surely, 2^{20011110221200} is an apocalyptic number.

20011110221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011110221200 is an abundant number, since it is smaller than the sum of its proper divisors (34933680993840).

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

20011110221200 is a wasteful number, since it uses less digits than its factorization.

20011110221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7146825104 (or 7146825093 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20011110221200 its reverse (212201111002), we get a palindrome (20223311332202).

The spelling of 20011110221200 in words is "twenty trillion, eleven billion, one hundred ten million, two hundred twenty-one thousand, two hundred".