20012212411 has 4 divisors (see below), whose sum is σ = 20195810800. Its totient is φ = 19828614024.

The previous prime is 20012212399. The next prime is 20012212457. The reversal of 20012212411 is 11421221002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11421221002 = 2 ⋅5710610501.

It is a cyclic number.

It is not a de Polignac number, because 20012212411 - 2⁹ = 20012211899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012222411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91799031 + ... + 91799248.

It is an arithmetic number, because the mean of its divisors is an integer number (5048952700).

Almost surely, 2^20012212411 is an apocalyptic number.

20012212411 is a deficient number, since it is larger than the sum of its proper divisors (183598389).

20012212411 is a wasteful number, since it uses less digits than its factorization.

20012212411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183598388.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20012212411 its reverse (11421221002), we get a palindrome (31433433413).

The spelling of 20012212411 in words is "twenty billion, twelve million, two hundred twelve thousand, four hundred eleven".