222011121012 has 24 divisors (see below), whose sum is σ = 518034856416. Its totient is φ = 74002434528.

The previous prime is 222011120963. The next prime is 222011121037. The reversal of 222011121012 is 210121110222.

It is a junction number, because it is equal to n+sod(n) for n = 222011120982 and 222011121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798478 + ... + 1039994.

It is an arithmetic number, because the mean of its divisors is an integer number (21584785684).

Almost surely, 2^222011121012 is an apocalyptic number.

It is an amenable number.

222011121012 is an abundant number, since it is smaller than the sum of its proper divisors (296023735404).

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

222011121012 is a wasteful number, since it uses less digits than its factorization.

222011121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318127 (or 318125 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222011121012 its reverse (210121110222), we get a palindrome (432132231234).

The spelling of 222011121012 in words is "two hundred twenty-two billion, eleven million, one hundred twenty-one thousand, twelve".