121707102 has 32 divisors (see below), whose sum is σ = 267909120. Its totient is φ = 36552320.

The previous prime is 121707083. The next prime is 121707107. The reversal of 121707102 is 201707121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121707107) 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 15 ways as a sum of consecutive naturals, for example, 702 + ... + 15617.

It is an arithmetic number, because the mean of its divisors is an integer number (8372160).

Almost surely, 2^121707102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121707102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133954560).

121707102 is an abundant number, since it is smaller than the sum of its proper divisors (146202018).

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

121707102 is a wasteful number, since it uses less digits than its factorization.

121707102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16448.

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 121707102 is about 11032.0941801636. The cubic root of 121707102 is about 495.5703414750.

The spelling of 121707102 in words is "one hundred twenty-one million, seven hundred seven thousand, one hundred two".