1212201000222 has 32 divisors (see below), whose sum is σ = 2531016633600. Its totient is φ = 386314642560.

The previous prime is 1212201000209. The next prime is 1212201000253. The reversal of 1212201000222 is 2220001022121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1802779 + ... + 2382102.

It is an arithmetic number, because the mean of its divisors is an integer number (79094269800).

Almost surely, 2^{1212201000222} is an apocalyptic number.

1212201000222 is an abundant number, since it is smaller than the sum of its proper divisors (1318815633378).

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

1212201000222 is a wasteful number, since it uses less digits than its factorization.

1212201000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187008.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1212201000222 its reverse (2220001022121), we get a palindrome (3432202022343).

The spelling of 1212201000222 in words is "one trillion, two hundred twelve billion, two hundred one million, two hundred twenty-two", and thus it is an aban number.