21214014102 has 48 divisors (see below), whose sum is σ = 49754058480. Its totient is φ = 6699156192.

The previous prime is 21214014091. The next prime is 21214014131. The reversal of 21214014102 is 20141041212.

21214014102 is a `hidden beast` number, since 212 + 1 + 40 + 1 + 410 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 524623 + ... + 563610.

It is an arithmetic number, because the mean of its divisors is an integer number (1036542885).

Almost surely, 2^21214014102 is an apocalyptic number.

21214014102 is an abundant number, since it is smaller than the sum of its proper divisors (28540044378).

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

21214014102 is a wasteful number, since it uses less digits than its factorization.

21214014102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088282 (or 1088257 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 21214014102 its reverse (20141041212), we get a palindrome (41355055314).

The spelling of 21214014102 in words is "twenty-one billion, two hundred fourteen million, fourteen thousand, one hundred two".