121011121002019 has 2 divisors, whose sum is σ = 121011121002020. Its totient is φ = 121011121002018.

The previous prime is 121011121001977. The next prime is 121011121002059. The reversal of 121011121002019 is 910200121110121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121011121002019 is a prime.

It is a super-2 number, since 2×121011121002019² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121011121002059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505560501009 + 60505560501010.

It is an arithmetic number, because the mean of its divisors is an integer number (60505560501010).

Almost surely, 2^{121011121002019} is an apocalyptic number.

121011121002019 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011121002019 is an equidigital number, since it uses as much as digits as its factorization.

121011121002019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 121011121002019 in words is "one hundred twenty-one trillion, eleven billion, one hundred twenty-one million, two thousand, nineteen".