1212222000010 has 24 divisors (see below), whose sum is σ = 2538244433700. Its totient is φ = 415618971264.

The previous prime is 1212222000001. The next prime is 1212222000013. The reversal of 1212222000010 is 100002222121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1141395226321 + 70826773689 = 1068361^2 + 266133^2 .

It is not an unprimeable number, because it can be changed into a prime (1212222000013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1236960735 + ... + 1236961714.

Almost surely, 2^{1212222000010} is an apocalyptic number.

1212222000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212222000010 is an abundant number, since it is smaller than the sum of its proper divisors (1326022433690).

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

1212222000010 is a wasteful number, since it uses less digits than its factorization.

1212222000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473922470 (or 2473922463 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1212222000010 its reverse (100002222121), we get a palindrome (1312224222131).

The spelling of 1212222000010 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, ten", and thus it is an aban number.