121271007 has 16 divisors (see below), whose sum is σ = 189963648. Its totient is φ = 67843680.

The previous prime is 121270999. The next prime is 121271009. The reversal of 121271007 is 700172121.

It is a happy number.

It is not a de Polignac number, because 121271007 - 2³ = 121270999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121271009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140913 + ... + 141770.

It is an arithmetic number, because the mean of its divisors is an integer number (11872728).

Almost surely, 2^121271007 is an apocalyptic number.

121271007 is a deficient number, since it is larger than the sum of its proper divisors (68692641).

121271007 is a wasteful number, since it uses less digits than its factorization.

121271007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282710.

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

The square root of 121271007 is about 11012.3116101934. The cubic root of 121271007 is about 494.9777318827.

The spelling of 121271007 in words is "one hundred twenty-one million, two hundred seventy-one thousand, seven".