20112221130 has 16 divisors (see below), whose sum is σ = 48269330784. Its totient is φ = 5363258960.

The previous prime is 20112221119. The next prime is 20112221141. The reversal of 20112221130 is 3112221102.

It is an interprime number because it is at equal distance from previous prime (20112221119) and next prime (20112221141).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335203656 + ... + 335203715.

It is an arithmetic number, because the mean of its divisors is an integer number (3016833174).

Almost surely, 2^20112221130 is an apocalyptic number.

20112221130 is an abundant number, since it is smaller than the sum of its proper divisors (28157109654).

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

20112221130 is a wasteful number, since it uses less digits than its factorization.

20112221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670407381.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20112221130 its reverse (3112221102), we get a palindrome (23224442232).

The spelling of 20112221130 in words is "twenty billion, one hundred twelve million, two hundred twenty-one thousand, one hundred thirty".