21122225433 has 24 divisors (see below), whose sum is σ = 32311738368. Its totient is φ = 13250224512.

The previous prime is 21122225431. The next prime is 21122225459. The reversal of 21122225433 is 33452222112.

21122225433 is a `hidden beast` number, since 2 + 1 + 1 + 2 + 2 + 225 + 433 = 666.

It is not a de Polignac number, because 21122225433 - 2¹ = 21122225431 is a prime.

It is a super-2 number, since 2×21122225433² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21122225397 and 21122225406.

It is not an unprimeable number, because it can be changed into a prime (21122225431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 829416 + ... + 854502.

It is an arithmetic number, because the mean of its divisors is an integer number (1346322432).

Almost surely, 2^21122225433 is an apocalyptic number.

It is an amenable number.

21122225433 is a deficient number, since it is larger than the sum of its proper divisors (11189512935).

21122225433 is a wasteful number, since it uses less digits than its factorization.

21122225433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30613 (or 30610 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

Adding to 21122225433 its reverse (33452222112), we get a palindrome (54574447545).

The spelling of 21122225433 in words is "twenty-one billion, one hundred twenty-two million, two hundred twenty-five thousand, four hundred thirty-three".