22540210521 has 8 divisors (see below), whose sum is σ = 30159811680. Its totient is φ = 14973708192.

The previous prime is 22540210507. The next prime is 22540210547. The reversal of 22540210521 is 12501204522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22540210521 - 2¹³ = 22540202329 is a prime.

It is a super-2 number, since 2×22540210521² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22540210491 and 22540210500.

It is not an unprimeable number, because it can be changed into a prime (22540210921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13273716 + ... + 13275413.

It is an arithmetic number, because the mean of its divisors is an integer number (3769976460).

Almost surely, 2^22540210521 is an apocalyptic number.

It is an amenable number.

22540210521 is a deficient number, since it is larger than the sum of its proper divisors (7619601159).

22540210521 is a wasteful number, since it uses less digits than its factorization.

22540210521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26549415.

The product of its (nonzero) digits is 1600, while the sum is 24.

The spelling of 22540210521 in words is "twenty-two billion, five hundred forty million, two hundred ten thousand, five hundred twenty-one".