121701105 has 12 divisors (see below), whose sum is σ = 210948660. Its totient is φ = 64907232.

The previous prime is 121701101. The next prime is 121701109. The reversal of 121701105 is 501107121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121701101) and next prime (121701109).

It can be written as a sum of positive squares in 2 ways, for example, as 35712576 + 85988529 = 5976^2 + 9273^2 .

It is not a de Polignac number, because 121701105 - 2² = 121701101 is a prime.

It is a super-2 number, since 2×121701105² = 29622317916442050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121701101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1352190 + ... + 1352279.

It is an arithmetic number, because the mean of its divisors is an integer number (17579055).

Almost surely, 2^121701105 is an apocalyptic number.

121701105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121701105 is a deficient number, since it is larger than the sum of its proper divisors (89247555).

121701105 is a wasteful number, since it uses less digits than its factorization.

121701105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704480 (or 2704477 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 121701105 is about 11031.8223789182. The cubic root of 121701105 is about 495.5622017578.

Adding to 121701105 its reverse (501107121), we get a palindrome (622808226).

The spelling of 121701105 in words is "one hundred twenty-one million, seven hundred one thousand, one hundred five".