1822021181327 has 4 divisors (see below), whose sum is σ = 1880796058176. Its totient is φ = 1763246304480.

The previous prime is 1822021181257. The next prime is 1822021181353. The reversal of 1822021181327 is 7231811202281.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1822021181327 is a prime.

It is a super-2 number, since 2×1822021181327² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822021189327) 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, 29387438378 + ... + 29387438439.

It is an arithmetic number, because the mean of its divisors is an integer number (470199014544).

Almost surely, 2^{1822021181327} is an apocalyptic number.

1822021181327 is a deficient number, since it is larger than the sum of its proper divisors (58774876849).

1822021181327 is an equidigital number, since it uses as much as digits as its factorization.

1822021181327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58774876848.

The product of its (nonzero) digits is 21504, while the sum is 38.

The spelling of 1822021181327 in words is "one trillion, eight hundred twenty-two billion, twenty-one million, one hundred eighty-one thousand, three hundred twenty-seven".