1001401022045 has 4 divisors (see below), whose sum is σ = 1201681226460. Its totient is φ = 801120817632.

The previous prime is 1001401022021. The next prime is 1001401022047. The reversal of 1001401022045 is 5402201041001.

It is a happy number.

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 208164975001 + 793236047044 = 456251^2 + 890638^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001401022045 - 2¹⁶ = 1001400956509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001401022047) 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, 100140102200 + ... + 100140102209.

It is an arithmetic number, because the mean of its divisors is an integer number (300420306615).

Almost surely, 2^{1001401022045} is an apocalyptic number.

It is an amenable number.

1001401022045 is a deficient number, since it is larger than the sum of its proper divisors (200280204415).

1001401022045 is an equidigital number, since it uses as much as digits as its factorization.

1001401022045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200280204414.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 1001401022045 its reverse (5402201041001), we get a palindrome (6403602063046).

The spelling of 1001401022045 in words is "one trillion, one billion, four hundred one million, twenty-two thousand, forty-five".