221211200892 has 48 divisors (see below), whose sum is σ = 572626857600. Its totient is φ = 65897530560.

The previous prime is 221211200891. The next prime is 221211200893. The reversal of 221211200892 is 298002112122.

221211200892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221211200891) and next prime (221211200893).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221211200891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14194267 + ... + 14209842.

It is an arithmetic number, because the mean of its divisors is an integer number (11929726200).

Almost surely, 2^221211200892 is an apocalyptic number.

221211200892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221211200892 is an abundant number, since it is smaller than the sum of its proper divisors (351415656708).

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

221211200892 is a wasteful number, since it uses less digits than its factorization.

221211200892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28404186 (or 28404184 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 221211200892 in words is "two hundred twenty-one billion, two hundred eleven million, two hundred thousand, eight hundred ninety-two".