222220021012 has 24 divisors (see below), whose sum is σ = 442683364032. Its totient is φ = 96617400000.

The previous prime is 222220020983. The next prime is 222220021057. The reversal of 222220021012 is 210120022222.

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, 109791489 + ... + 109793512.

It is an arithmetic number, because the mean of its divisors is an integer number (18445140168).

Almost surely, 2^222220021012 is an apocalyptic number.

222220021012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222220021012 is a deficient number, since it is larger than the sum of its proper divisors (220463343020).

222220021012 is a wasteful number, since it uses less digits than its factorization.

222220021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219585039 (or 219585037 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222220021012 its reverse (210120022222), we get a palindrome (432340043234).

The spelling of 222220021012 in words is "two hundred twenty-two billion, two hundred twenty million, twenty-one thousand, twelve".