22521343002 has 64 divisors (see below), whose sum is σ = 47120486400. Its totient is φ = 7168772160.

The previous prime is 22521342973. The next prime is 22521343003. The reversal of 22521343002 is 20034312522.

It is a super-2 number, since 2×22521343002² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22521343003) 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, 12036127 + ... + 12037997.

It is an arithmetic number, because the mean of its divisors is an integer number (736257600).

Almost surely, 2^22521343002 is an apocalyptic number.

22521343002 is an abundant number, since it is smaller than the sum of its proper divisors (24599143398).

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

22521343002 is a wasteful number, since it uses less digits than its factorization.

22521343002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 22521343002 its reverse (20034312522), we get a palindrome (42555655524).

The spelling of 22521343002 in words is "twenty-two billion, five hundred twenty-one million, three hundred forty-three thousand, two".