20122434999 has 12 divisors (see below), whose sum is σ = 30775489056. Its totient is φ = 12625841472.

The previous prime is 20122434991. The next prime is 20122435007. The reversal of 20122434999 is 99943422102.

20122434999 is a `hidden beast` number, since 2 + 0 + 122 + 434 + 9 + 99 = 666.

It is an interprime number because it is at equal distance from previous prime (20122434991) and next prime (20122435007).

It is not a de Polignac number, because 20122434999 - 2³ = 20122434991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122434991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65759439 + ... + 65759744.

It is an arithmetic number, because the mean of its divisors is an integer number (2564624088).

Almost surely, 2^20122434999 is an apocalyptic number.

20122434999 is a deficient number, since it is larger than the sum of its proper divisors (10653054057).

20122434999 is a wasteful number, since it uses less digits than its factorization.

20122434999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131519206 (or 131519203 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 20122434999 in words is "twenty billion, one hundred twenty-two million, four hundred thirty-four thousand, nine hundred ninety-nine".