222220211001012 has 288 divisors, whose sum is σ = 662287624846848. Its totient is φ = 61497744556032.

The previous prime is 222220211001007. The next prime is 222220211001067. The reversal of 222220211001012 is 210100112022222.

It is a happy number.

222220211001012 is a `hidden beast` number, since 222 + 220 + 21 + 100 + 101 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4066439473 + ... + 4066494119.

It is an arithmetic number, because the mean of its divisors is an integer number (2299609808496).

Almost surely, 2^{222220211001012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222220211001012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331143812423424).

222220211001012 is an abundant number, since it is smaller than the sum of its proper divisors (440067413845836).

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

222220211001012 is a wasteful number, since it uses less digits than its factorization.

222220211001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56655 (or 56650 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222220211001012 its reverse (210100112022222), we get a palindrome (432320323023234).

The spelling of 222220211001012 in words is "two hundred twenty-two trillion, two hundred twenty billion, two hundred eleven million, one thousand, twelve".