21350224610 has 96 divisors (see below), whose sum is σ = 45522025920. Its totient is φ = 7146796800.

The previous prime is 21350224583. The next prime is 21350224657. The reversal of 21350224610 is 1642205312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21350224610.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7787840 + ... + 7790580.

It is an arithmetic number, because the mean of its divisors is an integer number (474187770).

Almost surely, 2^21350224610 is an apocalyptic number.

21350224610 is an abundant number, since it is smaller than the sum of its proper divisors (24171801310).

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

21350224610 is a wasteful number, since it uses less digits than its factorization.

21350224610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204 (or 3191 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 21350224610 its reverse (1642205312), we get a palindrome (22992429922).

The spelling of 21350224610 in words is "twenty-one billion, three hundred fifty million, two hundred twenty-four thousand, six hundred ten".