21233111332020 has 96 divisors (see below), whose sum is σ = 68006140204800. Its totient is φ = 4848983737344.

The previous prime is 21233111332019. The next prime is 21233111332021. The reversal of 21233111332020 is 2023311133212.

It is an interprime number because it is at equal distance from previous prime (21233111332019) and next prime (21233111332021).

It is a super-2 number, since 2×21233111332020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233111332021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21915115 + ... + 22863474.

It is an arithmetic number, because the mean of its divisors is an integer number (708397293800).

Almost surely, 2^{21233111332020} is an apocalyptic number.

21233111332020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21233111332020 is an abundant number, since it is smaller than the sum of its proper divisors (46773028872780).

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

21233111332020 is a wasteful number, since it uses less digits than its factorization.

21233111332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44779737 (or 44779735 counting only the distinct ones).

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

Adding to 21233111332020 its reverse (2023311133212), we get a palindrome (23256422465232).

The spelling of 21233111332020 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred eleven million, three hundred thirty-two thousand, twenty".