21323332201170 has 64 divisors (see below), whose sum is σ = 52030393234560. Its totient is φ = 5591344396800.

The previous prime is 21323332201169. The next prime is 21323332201277. The reversal of 21323332201170 is 7110223332312.

It is a super-2 number, since 2×21323332201170² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 4440646 + ... + 7897214.

It is an arithmetic number, because the mean of its divisors is an integer number (812974894290).

Almost surely, 2^{21323332201170} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21323332201170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26015196617280).

21323332201170 is an abundant number, since it is smaller than the sum of its proper divisors (30707061033390).

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

21323332201170 is a wasteful number, since it uses less digits than its factorization.

21323332201170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460011.

The product of its (nonzero) digits is 9072, while the sum is 30.

Adding to 21323332201170 its reverse (7110223332312), we get a palindrome (28433555533482).

The spelling of 21323332201170 in words is "twenty-one trillion, three hundred twenty-three billion, three hundred thirty-two million, two hundred one thousand, one hundred seventy".