212211022000 has 80 divisors (see below), whose sum is σ = 516818484000. Its totient is φ = 84273619200.

The previous prime is 212211021949. The next prime is 212211022007. The reversal of 212211022000 is 220112212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (212211022007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103675 + ... + 659674.

It is an arithmetic number, because the mean of its divisors is an integer number (6460231050).

Almost surely, 2^212211022000 is an apocalyptic number.

212211022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212211022000 is an abundant number, since it is smaller than the sum of its proper divisors (304607462000).

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

212211022000 is a wasteful number, since it uses less digits than its factorization.

212211022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763511 (or 763495 counting only the distinct ones).

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

Adding to 212211022000 its reverse (220112212), we get a palindrome (212431134212).

The spelling of 212211022000 in words is "two hundred twelve billion, two hundred eleven million, twenty-two thousand".