121546753517122 has 4 divisors (see below), whose sum is σ = 182320130275686. Its totient is φ = 60773376758560.

The previous prime is 121546753517117. The next prime is 121546753517179. The reversal of 121546753517122 is 221715357645121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 63778256404641 + 57768497112481 = 7986129^2 + 7600559^2 .

It is a super-2 number, since 2×121546753517122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121546753517122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30386688379279 + ... + 30386688379282.

Almost surely, 2^{121546753517122} is an apocalyptic number.

121546753517122 is a deficient number, since it is larger than the sum of its proper divisors (60773376758564).

121546753517122 is an equidigital number, since it uses as much as digits as its factorization.

121546753517122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60773376758563.

The product of its digits is 3528000, while the sum is 52.

The spelling of 121546753517122 in words is "one hundred twenty-one trillion, five hundred forty-six billion, seven hundred fifty-three million, five hundred seventeen thousand, one hundred twenty-two".