22143402030 has 128 divisors (see below), whose sum is σ = 56591861760. Its totient is φ = 5533552640.

The previous prime is 22143402013. The next prime is 22143402079. The reversal of 22143402030 is 3020434122.

It is a junction number, because it is equal to n+sod(n) for n = 22143401988 and 22143402006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6937735 + ... + 6940925.

It is an arithmetic number, because the mean of its divisors is an integer number (442123920).

Almost surely, 2^22143402030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22143402030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28295930880).

22143402030 is an abundant number, since it is smaller than the sum of its proper divisors (34448459730).

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

22143402030 is a wasteful number, since it uses less digits than its factorization.

22143402030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22143402030 its reverse (3020434122), we get a palindrome (25163836152).

The spelling of 22143402030 in words is "twenty-two billion, one hundred forty-three million, four hundred two thousand, thirty".