201101110001021 has 16 divisors (see below), whose sum is σ = 209325271196160. Its totient is φ = 193085220007680.

The previous prime is 201101110000981. The next prime is 201101110001041. The reversal of 201101110001021 is 120100011101102.

It is a cyclic number.

It is not a de Polignac number, because 201101110001021 - 2²² = 201101105806717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201101110000993 and 201101110001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201101110001041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212048465 + ... + 212994726.

It is an arithmetic number, because the mean of its divisors is an integer number (13082829449760).

Almost surely, 2^{201101110001021} is an apocalyptic number.

It is an amenable number.

201101110001021 is a deficient number, since it is larger than the sum of its proper divisors (8224161195139).

201101110001021 is a wasteful number, since it uses less digits than its factorization.

201101110001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425043436.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201101110001021 its reverse (120100011101102), we get a palindrome (321201121102123).

The spelling of 201101110001021 in words is "two hundred one trillion, one hundred one billion, one hundred ten million, one thousand, twenty-one".