121061522261 has 8 divisors (see below), whose sum is σ = 121220289024. Its totient is φ = 120902831280.

The previous prime is 121061522251. The next prime is 121061522297. The reversal of 121061522261 is 162225160121.

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 121061522261 - 2²² = 121057327957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121061522251) 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, 3627296 + ... + 3660518.

It is an arithmetic number, because the mean of its divisors is an integer number (15152536128).

Almost surely, 2^121061522261 is an apocalyptic number.

It is an amenable number.

121061522261 is a deficient number, since it is larger than the sum of its proper divisors (158766763).

121061522261 is an equidigital number, since it uses as much as digits as its factorization.

121061522261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37891.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 121061522261 its reverse (162225160121), we get a palindrome (283286682382).

The spelling of 121061522261 in words is "one hundred twenty-one billion, sixty-one million, five hundred twenty-two thousand, two hundred sixty-one".