21011223322300 has 72 divisors (see below), whose sum is σ = 45790514750736. Its totient is φ = 8368400578560.

The previous prime is 21011223322259. The next prime is 21011223322307. The reversal of 21011223322300 is 322332211012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011223322307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23674162 + ... + 24545638.

It is an arithmetic number, because the mean of its divisors is an integer number (635979371538).

Almost surely, 2^{21011223322300} is an apocalyptic number.

21011223322300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21011223322300 is an abundant number, since it is smaller than the sum of its proper divisors (24779291428436).

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

21011223322300 is a wasteful number, since it uses less digits than its factorization.

21011223322300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872527 (or 872520 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21011223322300 its reverse (322332211012), we get a palindrome (21333555533312).

The spelling of 21011223322300 in words is "twenty-one trillion, eleven billion, two hundred twenty-three million, three hundred twenty-two thousand, three hundred".