1011202100001 has 12 divisors (see below), whose sum is σ = 1494593285328. Its totient is φ = 658457181144.

The previous prime is 1011202099993. The next prime is 1011202100009. The reversal of 1011202100001 is 1000012021101.

It is a happy number.

1011202100001 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1011202099993) and next prime (1011202100009).

It is not a de Polignac number, because 1011202100001 - 2³ = 1011202099993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1011202100009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1306462275 + ... + 1306463048.

It is an arithmetic number, because the mean of its divisors is an integer number (124549440444).

Almost surely, 2^{1011202100001} is an apocalyptic number.

It is an amenable number.

1011202100001 is a deficient number, since it is larger than the sum of its proper divisors (483391185327).

1011202100001 is a wasteful number, since it uses less digits than its factorization.

1011202100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612925372 (or 2612925369 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1011202100001 its reverse (1000012021101), we get a palindrome (2011214121102).

The spelling of 1011202100001 in words is "one trillion, eleven billion, two hundred two million, one hundred thousand, one".