22001221130 has 64 divisors (see below), whose sum is σ = 45886832640. Its totient is φ = 7438976064.

The previous prime is 22001221129. The next prime is 22001221153. The reversal of 22001221130 is 3112210022.

It is a happy number.

It is a super-2 number, since 2×22001221130² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6097787 + ... + 6101393.

It is an arithmetic number, because the mean of its divisors is an integer number (716981760).

Almost surely, 2^22001221130 is an apocalyptic number.

22001221130 is an abundant number, since it is smaller than the sum of its proper divisors (23885611510).

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

22001221130 is a wasteful number, since it uses less digits than its factorization.

22001221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22001221130 its reverse (3112210022), we get a palindrome (25113431152).

It can be divided in two parts, 220012 and 21130, that added together give a palindrome (241142).

The spelling of 22001221130 in words is "twenty-two billion, one million, two hundred twenty-one thousand, one hundred thirty".