212222310000 has 100 divisors (see below), whose sum is σ = 685082009832. Its totient is φ = 56592608000.

The previous prime is 212222309989. The next prime is 212222310067. The reversal of 212222310000 is 13222212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×212222310000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3507039 + ... + 3567038.

Almost surely, 2^212222310000 is an apocalyptic number.

212222310000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212222310000 is an abundant number, since it is smaller than the sum of its proper divisors (472859699832).

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

212222310000 is an equidigital number, since it uses as much as digits as its factorization.

212222310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7074108 (or 7074087 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 212222310000 its reverse (13222212), we get a palindrome (212235532212).

The spelling of 212222310000 in words is "two hundred twelve billion, two hundred twenty-two million, three hundred ten thousand".