20211422340 has 96 divisors (see below), whose sum is σ = 57565992960. Its totient is φ = 5297314176.

The previous prime is 20211422321. The next prime is 20211422347. The reversal of 20211422340 is 4322411202.

It is not an unprimeable number, because it can be changed into a prime (20211422347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1855831 + ... + 1866689.

It is an arithmetic number, because the mean of its divisors is an integer number (599645760).

Almost surely, 2^20211422340 is an apocalyptic number.

20211422340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20211422340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28782996480).

20211422340 is an abundant number, since it is smaller than the sum of its proper divisors (37354570620).

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

20211422340 is a wasteful number, since it uses less digits than its factorization.

20211422340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11401 (or 11399 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20211422340 its reverse (4322411202), we get a palindrome (24533833542).

The spelling of 20211422340 in words is "twenty billion, two hundred eleven million, four hundred twenty-two thousand, three hundred forty".