121011022011999 has 16 divisors (see below), whose sum is σ = 184427218660608. Its totient is φ = 69138103873152.

The previous prime is 121011022011991. The next prime is 121011022012031. The reversal of 121011022011999 is 999110220110121.

It is not a de Polignac number, because 121011022011999 - 2³ = 121011022011991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011022011991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460347237 + ... + 460610030.

It is an arithmetic number, because the mean of its divisors is an integer number (11526701166288).

Almost surely, 2^{121011022011999} is an apocalyptic number.

121011022011999 is a deficient number, since it is larger than the sum of its proper divisors (63416196648609).

121011022011999 is an equidigital number, since it uses as much as digits as its factorization.

121011022011999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920963534.

The product of its (nonzero) digits is 5832, while the sum is 39.

The spelling of 121011022011999 in words is "one hundred twenty-one trillion, eleven billion, twenty-two million, eleven thousand, nine hundred ninety-nine".