21966102 has 24 divisors (see below), whose sum is σ = 47847384. Its totient is φ = 7282944.

The previous prime is 21966101. The next prime is 21966103. The reversal of 21966102 is 20166912.

It is an interprime number because it is at equal distance from previous prime (21966101) and next prime (21966103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21966101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313 + ... + 6635.

It is an arithmetic number, because the mean of its divisors is an integer number (1993641).

Almost surely, 2^21966102 is an apocalyptic number.

21966102 is an abundant number, since it is smaller than the sum of its proper divisors (25881282).

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

21966102 is a wasteful number, since it uses less digits than its factorization.

21966102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6524 (or 6521 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 21966102 is about 4686.8008278569. The cubic root of 21966102 is about 280.0599446486.

The spelling of 21966102 in words is "twenty-one million, nine hundred sixty-six thousand, one hundred two".