121671101121699 has 32 divisors (see below), whose sum is σ = 162923865350400. Its totient is φ = 80766950584320.

The previous prime is 121671101121683. The next prime is 121671101121709. The reversal of 121671101121699 is 996121101176121.

It is not a de Polignac number, because 121671101121699 - 2⁴ = 121671101121683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121671101121629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5815729759 + ... + 5815750679.

It is an arithmetic number, because the mean of its divisors is an integer number (5091370792200).

Almost surely, 2^{121671101121699} is an apocalyptic number.

121671101121699 is a deficient number, since it is larger than the sum of its proper divisors (41252764228701).

121671101121699 is a wasteful number, since it uses less digits than its factorization.

121671101121699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29475.

The product of its (nonzero) digits is 81648, while the sum is 48.

The spelling of 121671101121699 in words is "one hundred twenty-one trillion, six hundred seventy-one billion, one hundred one million, one hundred twenty-one thousand, six hundred ninety-nine".