20022200011100 has 144 divisors (see below), whose sum is σ = 50729831083008. Its totient is φ = 6716873928960.

The previous prime is 20022200011091. The next prime is 20022200011127. The reversal of 20022200011100 is 111000222002.

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 47 ways as a sum of consecutive naturals, for example, 12880439 + ... + 14350961.

It is an arithmetic number, because the mean of its divisors is an integer number (352290493632).

Almost surely, 2^{20022200011100} is an apocalyptic number.

20022200011100 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 20022200011100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25364915541504).

20022200011100 is an abundant number, since it is smaller than the sum of its proper divisors (30707631071908).

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

20022200011100 is a wasteful number, since it uses less digits than its factorization.

20022200011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470964 (or 1470957 counting only the distinct ones).

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

Adding to 20022200011100 its reverse (111000222002), we get a palindrome (20133200233102).

The spelling of 20022200011100 in words is "twenty trillion, twenty-two billion, two hundred million, eleven thousand, one hundred".