220011221233131 has 4 divisors (see below), whose sum is σ = 293348294977512. Its totient is φ = 146674147488752.

The previous prime is 220011221233127. The next prime is 220011221233187. The reversal of 220011221233131 is 131332122110022.

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

It is a cyclic number.

It is not a de Polignac number, because 220011221233131 - 2² = 220011221233127 is a prime.

It is a super-2 number, since 2×220011221233131² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220011221233121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36668536872186 + ... + 36668536872191.

It is an arithmetic number, because the mean of its divisors is an integer number (73337073744378).

Almost surely, 2^{220011221233131} is an apocalyptic number.

220011221233131 is a deficient number, since it is larger than the sum of its proper divisors (73337073744381).

220011221233131 is an equidigital number, since it uses as much as digits as its factorization.

220011221233131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73337073744380.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 220011221233131 its reverse (131332122110022), we get a palindrome (351343343343153).

The spelling of 220011221233131 in words is "two hundred twenty trillion, eleven billion, two hundred twenty-one million, two hundred thirty-three thousand, one hundred thirty-one".