121201761670061 has 4 divisors (see below), whose sum is σ = 121201790956224. Its totient is φ = 121201732383900.

The previous prime is 121201761670007. The next prime is 121201761670111. The reversal of 121201761670061 is 160076167102121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121201761670061 - 2³⁸ = 120926883763117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201761675061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7160885 + ... + 17137146.

It is an arithmetic number, because the mean of its divisors is an integer number (30300447739056).

Almost surely, 2^{121201761670061} is an apocalyptic number.

It is an amenable number.

121201761670061 is a deficient number, since it is larger than the sum of its proper divisors (29286163).

121201761670061 is an equidigital number, since it uses as much as digits as its factorization.

121201761670061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29286162.

The product of its (nonzero) digits is 42336, while the sum is 41.

The spelling of 121201761670061 in words is "one hundred twenty-one trillion, two hundred one billion, seven hundred sixty-one million, six hundred seventy thousand, sixty-one".