221023200301212 has 96 divisors (see below), whose sum is σ = 521334929816064. Its totient is φ = 72874089964800.

The previous prime is 221023200301181. The next prime is 221023200301223. The reversal of 221023200301212 is 212103002320122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4920680178 + ... + 4920725094.

It is an arithmetic number, because the mean of its divisors is an integer number (5430572185584).

Almost surely, 2^{221023200301212} is an apocalyptic number.

It is an amenable number.

221023200301212 is an abundant number, since it is smaller than the sum of its proper divisors (300311729514852).

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

221023200301212 is a wasteful number, since it uses less digits than its factorization.

221023200301212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49579 (or 49577 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221023200301212 its reverse (212103002320122), we get a palindrome (433126202621334).

The spelling of 221023200301212 in words is "two hundred twenty-one trillion, twenty-three billion, two hundred million, three hundred one thousand, two hundred twelve".