20022151332 has 12 divisors (see below), whose sum is σ = 46718353136. Its totient is φ = 6674050440.

The previous prime is 20022151313. The next prime is 20022151333. The reversal of 20022151332 is 23315122002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20022151299 and 20022151308.

It is not an unprimeable number, because it can be changed into a prime (20022151333) 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, 834256294 + ... + 834256317.

Almost surely, 2^20022151332 is an apocalyptic number.

It is an amenable number.

20022151332 is an abundant number, since it is smaller than the sum of its proper divisors (26696201804).

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

20022151332 is a wasteful number, since it uses less digits than its factorization.

20022151332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668512618 (or 1668512616 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20022151332 its reverse (23315122002), we get a palindrome (43337273334).

The spelling of 20022151332 in words is "twenty billion, twenty-two million, one hundred fifty-one thousand, three hundred thirty-two".