222020011220 has 96 divisors (see below), whose sum is σ = 564485822208. Its totient is φ = 71606126592.

The previous prime is 222020011217. The next prime is 222020011223. The reversal of 222020011220 is 22110020222.

It is an interprime number because it is at equal distance from previous prime (222020011217) and next prime (222020011223).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 222020011195 and 222020011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222020011223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4743854 + ... + 4790426.

It is an arithmetic number, because the mean of its divisors is an integer number (5880060648).

Almost surely, 2^222020011220 is an apocalyptic number.

222020011220 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 222020011220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282242911104).

222020011220 is an abundant number, since it is smaller than the sum of its proper divisors (342465810988).

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

222020011220 is a wasteful number, since it uses less digits than its factorization.

222020011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48609 (or 48607 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 222020011220 its reverse (22110020222), we get a palindrome (244130031442).

The spelling of 222020011220 in words is "two hundred twenty-two billion, twenty million, eleven thousand, two hundred twenty".