222113111220 has 576 divisors, whose sum is σ = 929082825216. Its totient is φ = 41450434560.

The previous prime is 222113111197. The next prime is 222113111243. The reversal of 222113111220 is 22111311222.

222113111220 is a `hidden beast` number, since 22 + 211 + 311 + 122 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (222113111197) and next prime (222113111243).

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 = 222113111193 and 222113111202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6650002 + ... + 6683318.

It is an arithmetic number, because the mean of its divisors is an integer number (1612991016).

Almost surely, 2^222113111220 is an apocalyptic number.

222113111220 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 222113111220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464541412608).

222113111220 is an abundant number, since it is smaller than the sum of its proper divisors (706969713996).

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

222113111220 is a wasteful number, since it uses less digits than its factorization.

222113111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33400 (or 33395 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 222113111220 its reverse (22111311222), we get a palindrome (244224422442).

It can be divided in two parts, 222113 and 111220, that added together give a palindrome (333333).

The spelling of 222113111220 in words is "two hundred twenty-two billion, one hundred thirteen million, one hundred eleven thousand, two hundred twenty".