20122010401 has 6 divisors (see below), whose sum is σ = 21236803602. Its totient is φ = 19062956880.

The previous prime is 20122010399. The next prime is 20122010413. The reversal of 20122010401 is 10401022102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11790702225 + 8331308176 = 108585^2 + 91276^2 .

It is not a de Polignac number, because 20122010401 - 2¹ = 20122010399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122014401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27869460 + ... + 27870181.

It is an arithmetic number, because the mean of its divisors is an integer number (3539467267).

Almost surely, 2^20122010401 is an apocalyptic number.

It is an amenable number.

20122010401 is a deficient number, since it is larger than the sum of its proper divisors (1114793201).

20122010401 is an equidigital number, since it uses as much as digits as its factorization.

20122010401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55739679 (or 55739660 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20122010401 its reverse (10401022102), we get a palindrome (30523032503).

The spelling of 20122010401 in words is "twenty billion, one hundred twenty-two million, ten thousand, four hundred one".