21282119352 has 96 divisors (see below), whose sum is σ = 62129056080. Its totient is φ = 6542415360.

The previous prime is 21282119347. The next prime is 21282119357. The reversal of 21282119352 is 25391128212.

21282119352 is a `hidden beast` number, since 21 + 282 + 1 + 1 + 9 + 352 = 666.

It is an interprime number because it is at equal distance from previous prime (21282119347) and next prime (21282119357).

It is a super-2 number, since 2×21282119352² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21282119357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1086348 + ... + 1105764.

Almost surely, 2^21282119352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21282119352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31064528040).

21282119352 is an abundant number, since it is smaller than the sum of its proper divisors (40846936728).

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

21282119352 is a wasteful number, since it uses less digits than its factorization.

21282119352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20613 (or 20606 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The spelling of 21282119352 in words is "twenty-one billion, two hundred eighty-two million, one hundred nineteen thousand, three hundred fifty-two".