22000201506 has 40 divisors (see below), whose sum is σ = 49323830160. Its totient is φ = 7329371832.

The previous prime is 22000201493. The next prime is 22000201511. The reversal of 22000201506 is 60510200022.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 266085 + ... + 338823.

It is an arithmetic number, because the mean of its divisors is an integer number (1233095754).

Almost surely, 2^22000201506 is an apocalyptic number.

22000201506 is an abundant number, since it is smaller than the sum of its proper divisors (27323628654).

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

22000201506 is a wasteful number, since it uses less digits than its factorization.

22000201506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74620 (or 74611 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 22000201506 its reverse (60510200022), we get a palindrome (82510401528).

The spelling of 22000201506 in words is "twenty-two billion, two hundred one thousand, five hundred six".