20000221211000 has 32 divisors (see below), whose sum is σ = 46800517636080. Its totient is φ = 8000088484000.

The previous prime is 20000221210927. The next prime is 20000221211041. The reversal of 20000221211000 is 11212200002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10000109606 + ... + 10000111605.

Almost surely, 2^{20000221211000} is an apocalyptic number.

20000221211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000221211000 is an abundant number, since it is smaller than the sum of its proper divisors (26800296425080).

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

20000221211000 is a wasteful number, since it uses less digits than its factorization.

20000221211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20000221232 (or 20000221218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20000221211000 its reverse (11212200002), we get a palindrome (20011433411002).

The spelling of 20000221211000 in words is "twenty trillion, two hundred twenty-one million, two hundred eleven thousand".