222011212170 has 64 divisors (see below), whose sum is σ = 581995725696. Its totient is φ = 53753306880.

The previous prime is 222011212169. The next prime is 222011212231. The reversal of 222011212170 is 71212110222.

It is a super-2 number, since 2×222011212170² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159049 + ... + 685068.

It is an arithmetic number, because the mean of its divisors is an integer number (9093683214).

Almost surely, 2^222011212170 is an apocalyptic number.

222011212170 is an abundant number, since it is smaller than the sum of its proper divisors (359984513526).

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

222011212170 is a wasteful number, since it uses less digits than its factorization.

222011212170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844935.

The product of its (nonzero) digits is 224, while the sum is 21.

Adding to 222011212170 its reverse (71212110222), we get a palindrome (293223322392).

The spelling of 222011212170 in words is "two hundred twenty-two billion, eleven million, two hundred twelve thousand, one hundred seventy".