20022230142 has 48 divisors (see below), whose sum is σ = 44092311120. Its totient is φ = 6565485696.

The previous prime is 20022230047. The next prime is 20022230197. The reversal of 20022230142 is 24103222002.

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

It is a congruent number.

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, 283873 + ... + 347315.

It is an arithmetic number, because the mean of its divisors is an integer number (918589815).

Almost surely, 2^20022230142 is an apocalyptic number.

20022230142 is an abundant number, since it is smaller than the sum of its proper divisors (24070080978).

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

20022230142 is a wasteful number, since it uses less digits than its factorization.

20022230142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63737 (or 63734 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20022230142 its reverse (24103222002), we get a palindrome (44125452144).

The spelling of 20022230142 in words is "twenty billion, twenty-two million, two hundred thirty thousand, one hundred forty-two".