21701102 has 8 divisors (see below), whose sum is σ = 32624256. Its totient is φ = 10826352.

The previous prime is 21701101. The next prime is 21701107. The reversal of 21701102 is 20110712.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21701101) 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 3 ways as a sum of consecutive naturals, for example, 10958 + ... + 12785.

It is an arithmetic number, because the mean of its divisors is an integer number (4078032).

Almost surely, 2^21701102 is an apocalyptic number.

21701102 is a deficient number, since it is larger than the sum of its proper divisors (10923154).

21701102 is a wasteful number, since it uses less digits than its factorization.

21701102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24202.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 21701102 is about 4658.4441608760. Note that the first 3 decimals coincide. The cubic root of 21701102 is about 278.9291667238.

Adding to 21701102 its reverse (20110712), we get a palindrome (41811814).

The spelling of 21701102 in words is "twenty-one million, seven hundred one thousand, one hundred two".