201021011101121 has 8 divisors (see below), whose sum is σ = 202057328155200. Its totient is φ = 199984955659632.

The previous prime is 201021011101109. The next prime is 201021011101133. The reversal of 201021011101121 is 121101110120102.

It is an interprime number because it is at equal distance from previous prime (201021011101109) and next prime (201021011101133).

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

It is a cyclic number.

It is not a de Polignac number, because 201021011101121 - 2³⁴ = 201003831231937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201021011101096 and 201021011101105.

It is not an unprimeable number, because it can be changed into a prime (201021011106121) 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, 63862310 + ... + 66936063.

It is an arithmetic number, because the mean of its divisors is an integer number (25257166019400).

Almost surely, 2^{201021011101121} is an apocalyptic number.

It is an amenable number.

201021011101121 is a deficient number, since it is larger than the sum of its proper divisors (1036317054079).

201021011101121 is a wasteful number, since it uses less digits than its factorization.

201021011101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130806295.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201021011101121 its reverse (121101110120102), we get a palindrome (322122121221223).

The spelling of 201021011101121 in words is "two hundred one trillion, twenty-one billion, eleven million, one hundred one thousand, one hundred twenty-one".