20022120413 has 8 divisors (see below), whose sum is σ = 21307509432. Its totient is φ = 18748688896.

The previous prime is 20022120397. The next prime is 20022120431. The reversal of 20022120413 is 31402122002.

It can be written as a sum of positive squares in 4 ways, for example, as 6888502009 + 13133618404 = 82997^2 + 114602^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20022120413 - 2⁴ = 20022120397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022120391 and 20022120400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022120493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2985920 + ... + 2992617.

It is an arithmetic number, because the mean of its divisors is an integer number (2663438679).

Almost surely, 2^20022120413 is an apocalyptic number.

It is an amenable number.

20022120413 is a deficient number, since it is larger than the sum of its proper divisors (1285389019).

20022120413 is a wasteful number, since it uses less digits than its factorization.

20022120413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5978751.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20022120413 its reverse (31402122002), we get a palindrome (51424242415).

The spelling of 20022120413 in words is "twenty billion, twenty-two million, one hundred twenty thousand, four hundred thirteen".