1020110001201 has 24 divisors (see below), whose sum is σ = 1513374422144. Its totient is φ = 661667577120.

The previous prime is 1020110001193. The next prime is 1020110001221. The reversal of 1020110001201 is 1021000110201.

It is a happy number.

It is not a de Polignac number, because 1020110001201 - 2³ = 1020110001193 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020110001221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12938040 + ... + 13016646.

Almost surely, 2^{1020110001201} is an apocalyptic number.

It is an amenable number.

1020110001201 is a deficient number, since it is larger than the sum of its proper divisors (493264420943).

1020110001201 is a wasteful number, since it uses less digits than its factorization.

1020110001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117621 (or 117618 counting only the distinct ones).

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

Adding to 1020110001201 its reverse (1021000110201), we get a palindrome (2041110111402).

The spelling of 1020110001201 in words is "one trillion, twenty billion, one hundred ten million, one thousand, two hundred one".