1001020001201 has 8 divisors (see below), whose sum is σ = 1092043101600. Its totient is φ = 910000447840.

The previous prime is 1001020001171. The next prime is 1001020001209. The reversal of 1001020001201 is 1021000201001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1001020001201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001020001209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278531 + ... + 1442088.

It is an arithmetic number, because the mean of its divisors is an integer number (136505387700).

Almost surely, 2^{1001020001201} is an apocalyptic number.

1001020001201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1001020001201 is a deficient number, since it is larger than the sum of its proper divisors (91023100399).

1001020001201 is a wasteful number, since it uses less digits than its factorization.

1001020001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773519.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1001020001201 its reverse (1021000201001), we get a palindrome (2022020202202).

The spelling of 1001020001201 in words is "one trillion, one billion, twenty million, one thousand, two hundred one".