20212210323001 has 4 divisors (see below), whose sum is σ = 20213404844404. Its totient is φ = 20211015801600.

The previous prime is 20212210322981. The next prime is 20212210323029. The reversal of 20212210323001 is 10032301221202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14830046960400 + 5382163362601 = 3850980^2 + 2319949^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212210323001 - 2³¹ = 20210062839353 is a prime.

It is a super-2 number, since 2×20212210323001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212210323001.

It is not an unprimeable number, because it can be changed into a prime (20212210324001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597235320 + ... + 597269161.

It is an arithmetic number, because the mean of its divisors is an integer number (5053351211101).

Almost surely, 2^{20212210323001} is an apocalyptic number.

It is an amenable number.

20212210323001 is a deficient number, since it is larger than the sum of its proper divisors (1194521403).

20212210323001 is a wasteful number, since it uses less digits than its factorization.

20212210323001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194521402.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20212210323001 its reverse (10032301221202), we get a palindrome (30244511544203).

The spelling of 20212210323001 in words is "twenty trillion, two hundred twelve billion, two hundred ten million, three hundred twenty-three thousand, one".