10121111019 has 6 divisors (see below), whose sum is σ = 14619382596. Its totient is φ = 6747407340.

The previous prime is 10121111009. The next prime is 10121111023. The reversal of 10121111019 is 91011112101.

It is not a de Polignac number, because 10121111019 - 2⁸ = 10121110763 is a prime.

It is a super-2 number, since 2×10121111019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10121110992 and 10121111010.

It is not an unprimeable number, because it can be changed into a prime (10121111009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 562283937 + ... + 562283954.

It is an arithmetic number, because the mean of its divisors is an integer number (2436563766).

Almost surely, 2^10121111019 is an apocalyptic number.

10121111019 is a deficient number, since it is larger than the sum of its proper divisors (4498271577).

10121111019 is a wasteful number, since it uses less digits than its factorization.

10121111019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124567897 (or 1124567894 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 18.

The spelling of 10121111019 in words is "ten billion, one hundred twenty-one million, one hundred eleven thousand, nineteen".