1011202100019 has 24 divisors (see below), whose sum is σ = 1522491223760. Its totient is φ = 646125087168.

The previous prime is 1011202100017. The next prime is 1011202100033. The reversal of 1011202100019 is 9100012021101.

It is a happy number.

It is not a de Polignac number, because 1011202100019 - 2¹ = 1011202100017 is a prime.

It is a super-2 number, since 2×1011202100019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011202099974 and 1011202100010.

It is not an unprimeable number, because it can be changed into a prime (1011202100017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22639204 + ... + 22683825.

Almost surely, 2^{1011202100019} is an apocalyptic number.

1011202100019 is a deficient number, since it is larger than the sum of its proper divisors (511289123741).

1011202100019 is a wasteful number, since it uses less digits than its factorization.

1011202100019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45323139 (or 45323136 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 1011202100019 in words is "one trillion, eleven billion, two hundred two million, one hundred thousand, nineteen".