20122928422 has 4 divisors (see below), whose sum is σ = 30184392636. Its totient is φ = 10061464210.

The previous prime is 20122928333. The next prime is 20122928429. The reversal of 20122928422 is 22482922102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22482922102 = 2 ⋅11241461051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122928429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030732104 + ... + 5030732107.

It is an arithmetic number, because the mean of its divisors is an integer number (7546098159).

Almost surely, 2^20122928422 is an apocalyptic number.

20122928422 is a deficient number, since it is larger than the sum of its proper divisors (10061464214).

20122928422 is a wasteful number, since it uses less digits than its factorization.

20122928422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10061464213.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 20122928422 in words is "twenty billion, one hundred twenty-two million, nine hundred twenty-eight thousand, four hundred twenty-two".