20012401922 has 18 divisors (see below), whose sum is σ = 30493753353. Its totient is φ = 9850252632.

The previous prime is 20012401901. The next prime is 20012401933. The reversal of 20012401922 is 22910421002.

It can be written as a sum of positive squares in 2 ways, for example, as 16669133881 + 3343268041 = 129109^2 + 57821^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=100031.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13403408 + ... + 13404900.

Almost surely, 2^20012401922 is an apocalyptic number.

20012401922 is a deficient number, since it is larger than the sum of its proper divisors (10481351431).

20012401922 is an frugal number, since it uses more digits than its factorization.

20012401922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 20012401922 its reverse (22910421002), we get a palindrome (42922822924).

The spelling of 20012401922 in words is "twenty billion, twelve million, four hundred one thousand, nine hundred twenty-two".