1201022000001 has 24 divisors (see below), whose sum is σ = 1762141530240. Its totient is φ = 788159676096.

The previous prime is 1201021999987. The next prime is 1201022000029. The reversal of 1201022000001 is 1000002201021.

It is not a de Polignac number, because 1201022000001 - 2¹¹ = 1201021997953 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 (1201022020001) 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, 3724236 + ... + 4033853.

It is an arithmetic number, because the mean of its divisors is an integer number (73422563760).

Almost surely, 2^{1201022000001} is an apocalyptic number.

It is an amenable number.

1201022000001 is a deficient number, since it is larger than the sum of its proper divisors (561119530239).

1201022000001 is a wasteful number, since it uses less digits than its factorization.

1201022000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7758365 (or 7758362 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1201022000001 its reverse (1000002201021), we get a palindrome (2201024201022).

The spelling of 1201022000001 in words is "one trillion, two hundred one billion, twenty-two million, one", and thus it is an aban number.