20111100222000 has 160 divisors (see below), whose sum is σ = 64896255463104. Its totient is φ = 5358157056000.

The previous prime is 20111100221899. The next prime is 20111100222019. The reversal of 20111100222000 is 22200111102.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5201620 + ... + 8202380.

Almost surely, 2^{20111100222000} is an apocalyptic number.

20111100222000 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 20111100222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32448127731552).

20111100222000 is an abundant number, since it is smaller than the sum of its proper divisors (44785155241104).

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

20111100222000 is a wasteful number, since it uses less digits than its factorization.

20111100222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001904 (or 3001888 counting only the distinct ones).

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

Adding to 20111100222000 its reverse (22200111102), we get a palindrome (20133300333102).

The spelling of 20111100222000 in words is "twenty trillion, one hundred eleven billion, one hundred million, two hundred twenty-two thousand".