20111141622 has 144 divisors (see below), whose sum is σ = 50399254080. Its totient is φ = 5328797760.

The previous prime is 20111141539. The next prime is 20111141639. The reversal of 20111141622 is 22614111102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2326873 + ... + 2335499.

It is an arithmetic number, because the mean of its divisors is an integer number (349994820).

Almost surely, 2^20111141622 is an apocalyptic number.

20111141622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20111141622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25199627040).

20111141622 is an abundant number, since it is smaller than the sum of its proper divisors (30288112458).

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

20111141622 is a wasteful number, since it uses less digits than its factorization.

20111141622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8699 (or 8675 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 20111141622 its reverse (22614111102), we get a palindrome (42725252724).

The spelling of 20111141622 in words is "twenty billion, one hundred eleven million, one hundred forty-one thousand, six hundred twenty-two".