222111110021130 has 256 divisors, whose sum is σ = 646796744455680. Its totient is φ = 53790533222400.

The previous prime is 222111110021089. The next prime is 222111110021131. The reversal of 222111110021130 is 31120011111222.

It is a happy number.

It is a super-4 number, since 4×222111110021130⁴ (a number of 58 digits) contains 4444 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (222111110021131) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16683769354 + ... + 16683782666.

It is an arithmetic number, because the mean of its divisors is an integer number (2526549783030).

Almost surely, 2^{222111110021130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222111110021130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323398372227840).

222111110021130 is an abundant number, since it is smaller than the sum of its proper divisors (424685634434550).

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

222111110021130 is a wasteful number, since it uses less digits than its factorization.

222111110021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18614 (or 18608 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 222111110021130 its reverse (31120011111222), we get a palindrome (253231121132352).

The spelling of 222111110021130 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred ten million, twenty-one thousand, one hundred thirty".