20133221022 has 24 divisors (see below), whose sum is σ = 44053883640. Its totient is φ = 6644626800.

The previous prime is 20133220997. The next prime is 20133221027. The reversal of 20133221022 is 22012233102.

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 = 20133220986 and 20133221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133221027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5535372 + ... + 5539007.

It is an arithmetic number, because the mean of its divisors is an integer number (1835578485).

Almost surely, 2^20133221022 is an apocalyptic number.

20133221022 is an abundant number, since it is smaller than the sum of its proper divisors (23920662618).

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

20133221022 is a wasteful number, since it uses less digits than its factorization.

20133221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11074488 (or 11074485 counting only the distinct ones).

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

Adding to 20133221022 its reverse (22012233102), we get a palindrome (42145454124).

The spelling of 20133221022 in words is "twenty billion, one hundred thirty-three million, two hundred twenty-one thousand, twenty-two".