181120021002022 has 4 divisors (see below), whose sum is σ = 271680031503036. Its totient is φ = 90560010501010.

The previous prime is 181120021002013. The next prime is 181120021002031. The reversal of 181120021002022 is 220200120021181.

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

It is an interprime number because it is at equal distance from previous prime (181120021002013) and next prime (181120021002031).

It is a junction number, because it is equal to n+sod(n) for n = 181120021001984 and 181120021002002.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 45280005250504 + ... + 45280005250507.

It is an arithmetic number, because the mean of its divisors is an integer number (67920007875759).

Almost surely, 2^{181120021002022} is an apocalyptic number.

181120021002022 is a deficient number, since it is larger than the sum of its proper divisors (90560010501014).

181120021002022 is an equidigital number, since it uses as much as digits as its factorization.

181120021002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90560010501013.

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 181120021002022 in words is "one hundred eighty-one trillion, one hundred twenty billion, twenty-one million, two thousand, twenty-two".