22003111100220 has 96 divisors (see below), whose sum is σ = 62112450673728. Its totient is φ = 5819655309312.

The previous prime is 22003111100197. The next prime is 22003111100233. The reversal of 22003111100220 is 2200111130022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22003111100220.

It is a congruent number.

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, 3150184 + ... + 7343696.

It is an arithmetic number, because the mean of its divisors is an integer number (647004694518).

Almost surely, 2^{22003111100220} is an apocalyptic number.

22003111100220 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 22003111100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31056225336864).

22003111100220 is an abundant number, since it is smaller than the sum of its proper divisors (40109339573508).

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

22003111100220 is a wasteful number, since it uses less digits than its factorization.

22003111100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4194239 (or 4194237 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22003111100220 its reverse (2200111130022), we get a palindrome (24203222230242).

The spelling of 22003111100220 in words is "twenty-two trillion, three billion, one hundred eleven million, one hundred thousand, two hundred twenty".