121277 has 8 divisors (see below), whose sum is σ = 137760. Its totient is φ = 105840.

The previous prime is 121271. The next prime is 121283. The reversal of 121277 is 772121.

It is an interprime number because it is at equal distance from previous prime (121271) and next prime (121283).

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

It is a cyclic number.

It is not a de Polignac number, because 121277 - 2⁸ = 121021 is a prime.

It is a super-2 number, since 2×121277² = 29416221458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2 + ... + 492.

It is an arithmetic number, because the mean of its divisors is an integer number (17220).

2¹²¹²⁷⁷ is an apocalyptic number.

It is an amenable number.

121277 is a deficient number, since it is larger than the sum of its proper divisors (16483).

121277 is a wasteful number, since it uses less digits than its factorization.

121277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523.

The product of its digits is 196, while the sum is 20.

The square root of 121277 is about 348.2484745121. The cubic root of 121277 is about 49.4985885392.

Adding to 121277 its reverse (772121), we get a palindrome (893398).

The spelling of 121277 in words is "one hundred twenty-one thousand, two hundred seventy-seven", and thus it is an iban number.