1212222000222 has 48 divisors (see below), whose sum is σ = 2663054437680. Its totient is φ = 398479200000.

The previous prime is 1212222000217. The next prime is 1212222000259. The reversal of 1212222000222 is 2220002222121.

1212222000222 is a `hidden beast` number, since 1 + 21 + 222 + 200 + 0 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1212222000195 and 1212222000204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 871947 + ... + 1784582.

It is an arithmetic number, because the mean of its divisors is an integer number (55480300785).

Almost surely, 2^{1212222000222} is an apocalyptic number.

1212222000222 is an abundant number, since it is smaller than the sum of its proper divisors (1450832437458).

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

1212222000222 is a wasteful number, since it uses less digits than its factorization.

1212222000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656889 (or 2656886 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1212222000222 its reverse (2220002222121), we get a palindrome (3432224222343).

The spelling of 1212222000222 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, two hundred twenty-two", and thus it is an aban number.