222222011120120 has 128 divisors (see below), whose sum is σ = 569177628157440. Its totient is φ = 77293497853440.

The previous prime is 222222011120117. The next prime is 222222011120129. The reversal of 222222011120120 is 21021110222222.

It is a super-4 number, since 4×222222011120120⁴ (a number of 58 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 222222011120092 and 222222011120101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222222011120129) 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, 1037668574 + ... + 1037882706.

It is an arithmetic number, because the mean of its divisors is an integer number (4446700219980).

Almost surely, 2^{222222011120120} is an apocalyptic number.

222222011120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222222011120120 is an abundant number, since it is smaller than the sum of its proper divisors (346955617037320).

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

222222011120120 is a wasteful number, since it uses less digits than its factorization.

222222011120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316725 (or 316721 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222222011120120 its reverse (21021110222222), we get a palindrome (243243121342342).

The spelling of 222222011120120 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, eleven million, one hundred twenty thousand, one hundred twenty".