121352202261 has 48 divisors (see below), whose sum is σ = 183840074496. Its totient is φ = 76990434048.

The previous prime is 121352202241. The next prime is 121352202289. The reversal of 121352202261 is 162202253121.

121352202261 is a `hidden beast` number, since 1 + 213 + 5 + 220 + 226 + 1 = 666.

It is not a de Polignac number, because 121352202261 - 2¹⁷ = 121352071189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121352202211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56363161 + ... + 56365313.

It is an arithmetic number, because the mean of its divisors is an integer number (3830001552).

Almost surely, 2^121352202261 is an apocalyptic number.

It is an amenable number.

121352202261 is a deficient number, since it is larger than the sum of its proper divisors (62487872235).

121352202261 is a wasteful number, since it uses less digits than its factorization.

121352202261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442 (or 3439 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 121352202261 its reverse (162202253121), we get a palindrome (283554455382).

The spelling of 121352202261 in words is "one hundred twenty-one billion, three hundred fifty-two million, two hundred two thousand, two hundred sixty-one".