21223133101320 has 64 divisors (see below), whose sum is σ = 63728959464000. Its totient is φ = 5654207923968.

The previous prime is 21223133101307. The next prime is 21223133101421. The reversal of 21223133101320 is 2310133132212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82593630 + ... + 82850189.

It is an arithmetic number, because the mean of its divisors is an integer number (995764991625).

Almost surely, 2^{21223133101320} is an apocalyptic number.

21223133101320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21223133101320 is an abundant number, since it is smaller than the sum of its proper divisors (42505826362680).

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

21223133101320 is a wasteful number, since it uses less digits than its factorization.

21223133101320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165444902 (or 165444898 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21223133101320 its reverse (2310133132212), we get a palindrome (23533266233532).

The spelling of 21223133101320 in words is "twenty-one trillion, two hundred twenty-three billion, one hundred thirty-three million, one hundred one thousand, three hundred twenty".