1022142042401 has 4 divisors (see below), whose sum is σ = 1022144079252. Its totient is φ = 1022140005552.

The previous prime is 1022142042391. The next prime is 1022142042403. The reversal of 1022142042401 is 1042402412201.

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 568372749025 + 453769293376 = 753905^2 + 673624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022142042401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022142042403) 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, 325211 + ... + 1466303.

It is an arithmetic number, because the mean of its divisors is an integer number (255536019813).

Almost surely, 2^{1022142042401} is an apocalyptic number.

It is an amenable number.

1022142042401 is a deficient number, since it is larger than the sum of its proper divisors (2036851).

1022142042401 is an equidigital number, since it uses as much as digits as its factorization.

1022142042401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036850.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 1022142042401 its reverse (1042402412201), we get a palindrome (2064544454602).

The spelling of 1022142042401 in words is "one trillion, twenty-two billion, one hundred forty-two million, forty-two thousand, four hundred one".