22200211022220 has 384 divisors, whose sum is σ = 86118813204480. Its totient is φ = 4612553890560.

The previous prime is 22200211022173. The next prime is 22200211022239. The reversal of 22200211022220 is 2222011200222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22200211022193 and 22200211022202.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 519853389 + ... + 519896091.

It is an arithmetic number, because the mean of its divisors is an integer number (224267742720).

Almost surely, 2^{22200211022220} is an apocalyptic number.

22200211022220 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 22200211022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43059406602240).

22200211022220 is an abundant number, since it is smaller than the sum of its proper divisors (63918602182260).

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

22200211022220 is a wasteful number, since it uses less digits than its factorization.

22200211022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55242 (or 55234 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22200211022220 its reverse (2222011200222), we get a palindrome (24422222222442).

The spelling of 22200211022220 in words is "twenty-two trillion, two hundred billion, two hundred eleven million, twenty-two thousand, two hundred twenty".