20111100211000 has 64 divisors (see below), whose sum is σ = 47142392600160. Its totient is φ = 8030351520000.

The previous prime is 20111100210991. The next prime is 20111100211043. The reversal of 20111100211000 is 11200111102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17039421 + ... + 18181420.

Almost surely, 2^{20111100211000} is an apocalyptic number.

20111100211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111100211000 is an abundant number, since it is smaller than the sum of its proper divisors (27031292389160).

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

20111100211000 is a wasteful number, since it uses less digits than its factorization.

20111100211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35221433 (or 35221419 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20111100211000 its reverse (11200111102), we get a palindrome (20122300322102).

The spelling of 20111100211000 in words is "twenty trillion, one hundred eleven billion, one hundred million, two hundred eleven thousand".