20111222433 has 16 divisors (see below), whose sum is σ = 27254200896. Its totient is φ = 13188436800.

The previous prime is 20111222423. The next prime is 20111222459. The reversal of 20111222433 is 33422211102.

It is not a de Polignac number, because 20111222433 - 2⁸ = 20111222177 is a prime.

It is a super-2 number, since 2×20111222433² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20111222423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69535 + ... + 212267.

It is an arithmetic number, because the mean of its divisors is an integer number (1703387556).

Almost surely, 2^20111222433 is an apocalyptic number.

It is an amenable number.

20111222433 is a deficient number, since it is larger than the sum of its proper divisors (7142978463).

20111222433 is a wasteful number, since it uses less digits than its factorization.

20111222433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143504.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20111222433 its reverse (33422211102), we get a palindrome (53533433535).

The spelling of 20111222433 in words is "twenty billion, one hundred eleven million, two hundred twenty-two thousand, four hundred thirty-three".