1020001120201 has 4 divisors (see below), whose sum is σ = 1165715565952. Its totient is φ = 874286674452.

The previous prime is 1020001120157. The next prime is 1020001120207. The reversal of 1020001120201 is 1020211000201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1020001120201 - 2²¹ = 1019999023049 is a prime.

It is a super-2 number, since 2×1020001120201² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020001120207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72857222865 + ... + 72857222878.

It is an arithmetic number, because the mean of its divisors is an integer number (291428891488).

Almost surely, 2^{1020001120201} is an apocalyptic number.

It is an amenable number.

1020001120201 is a deficient number, since it is larger than the sum of its proper divisors (145714445751).

1020001120201 is an equidigital number, since it uses as much as digits as its factorization.

1020001120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145714445750.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1020001120201 its reverse (1020211000201), we get a palindrome (2040212120402).

The spelling of 1020001120201 in words is "one trillion, twenty billion, one million, one hundred twenty thousand, two hundred one".