22101043240 has 32 divisors (see below), whose sum is σ = 49731655680. Its totient is φ = 8839651392.

The previous prime is 22101043213. The next prime is 22101043243. The reversal of 22101043240 is 4234010122.

It is a super-2 number, since 2×22101043240² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22101043243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762697 + ... + 791143.

It is an arithmetic number, because the mean of its divisors is an integer number (1554114240).

Almost surely, 2^22101043240 is an apocalyptic number.

22101043240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101043240 is an abundant number, since it is smaller than the sum of its proper divisors (27630612440).

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

22101043240 is a wasteful number, since it uses less digits than its factorization.

22101043240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47881 (or 47877 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22101043240 its reverse (4234010122), we get a palindrome (26335053362).

The spelling of 22101043240 in words is "twenty-two billion, one hundred one million, forty-three thousand, two hundred forty".