20012233122 has 48 divisors (see below), whose sum is σ = 50044767552. Its totient is φ = 5661165600.

The previous prime is 20012233099. The next prime is 20012233181. The reversal of 20012233122 is 22133221002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20012233095 and 20012233104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 773548 + ... + 798999.

It is an arithmetic number, because the mean of its divisors is an integer number (1042599324).

Almost surely, 2^20012233122 is an apocalyptic number.

20012233122 is an abundant number, since it is smaller than the sum of its proper divisors (30032534430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20012233122 is a wasteful number, since it uses less digits than its factorization.

20012233122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572663 (or 1572660 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20012233122 its reverse (22133221002), we get a palindrome (42145454124).

The spelling of 20012233122 in words is "twenty billion, twelve million, two hundred thirty-three thousand, one hundred twenty-two".