221012220211000 has 64 divisors (see below), whose sum is σ = 525646769132160. Its totient is φ = 86955627600000.

The previous prime is 221012220210983. The next prime is 221012220211007. The reversal of 221012220211000 is 112022210122.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221012220211007) 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, 1811514576 + ... + 1811636575.

It is an arithmetic number, because the mean of its divisors is an integer number (8213230767690).

Almost surely, 2^{221012220211000} is an apocalyptic number.

221012220211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221012220211000 is an abundant number, since it is smaller than the sum of its proper divisors (304634548921160).

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

221012220211000 is a wasteful number, since it uses less digits than its factorization.

221012220211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623151233 (or 3623151219 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221012220211000 its reverse (112022210122), we get a palindrome (221124242421122).

The spelling of 221012220211000 in words is "two hundred twenty-one trillion, twelve billion, two hundred twenty million, two hundred eleven thousand".