21850102 has 8 divisors (see below), whose sum is σ = 33832512. Its totient is φ = 10572600.

The previous prime is 21850099. The next prime is 21850177. The reversal of 21850102 is 20105812.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21850102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176149 + ... + 176272.

It is an arithmetic number, because the mean of its divisors is an integer number (4229064).

Almost surely, 2^21850102 is an apocalyptic number.

21850102 is a deficient number, since it is larger than the sum of its proper divisors (11982410).

21850102 is a wasteful number, since it uses less digits than its factorization.

21850102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352454.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 21850102 is about 4674.4092674904. The cubic root of 21850102 is about 279.5660881246.

Adding to 21850102 its reverse (20105812), we get a palindrome (41955914).

It can be divided in two parts, 21850 and 102, that added together give a cube (21952 = 28³).

The spelling of 21850102 in words is "twenty-one million, eight hundred fifty thousand, one hundred two".