1000222012212 has 48 divisors (see below), whose sum is σ = 2339651919360.
Its totient is φ = 332579626848.
The previous prime is 1000222012189. The next prime is 1000222012213. The reversal of 1000222012212 is 2122102220001.
It is a junction number, because it is equal to n+sod(n) for n = 1000222012191 and 1000222012200.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1000222012213) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8580873 + ... + 8696655.
It is an arithmetic number, because the mean of its divisors is an integer number (48742748320).
Almost surely, 21000222012212 is an apocalyptic number.
1000222012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1000222012212 is an abundant number, since it is smaller than the sum of its proper divisors (1339429907148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1000222012212 is a wasteful number, since it uses less digits than its factorization.
1000222012212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 117572 (or 117570 counting only the distinct ones).
The product of its (nonzero) digits is 64, while the sum is 15.
Adding to 1000222012212 its reverse (2122102220001), we get a palindrome (3122324232213).
The spelling of 1000222012212 in words is "one trillion, two hundred twenty-two million, twelve thousand, two hundred twelve".