1020522420401 has 4 divisors (see below), whose sum is σ = 1113297185904. Its totient is φ = 927747654900.

The previous prime is 1020522420377. The next prime is 1020522420427. The reversal of 1020522420401 is 1040242250201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1020522420401 - 2²⁶ = 1020455311537 is a prime.

It is a super-2 number, since 2×1020522420401² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020522420451) 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, 46387382735 + ... + 46387382756.

It is an arithmetic number, because the mean of its divisors is an integer number (278324296476).

Almost surely, 2^{1020522420401} is an apocalyptic number.

1020522420401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1020522420401 is a deficient number, since it is larger than the sum of its proper divisors (92774765503).

1020522420401 is an equidigital number, since it uses as much as digits as its factorization.

1020522420401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92774765502.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 1020522420401 its reverse (1040242250201), we get a palindrome (2060764670602).

The spelling of 1020522420401 in words is "one trillion, twenty billion, five hundred twenty-two million, four hundred twenty thousand, four hundred one".