201101120021 has 8 divisors (see below), whose sum is σ = 201387648000. Its totient is φ = 200814658560.

The previous prime is 201101120009. The next prime is 201101120023. The reversal of 201101120021 is 120021101102.

201101120021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201101120021 - 2²² = 201096925717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201101119984 and 201101120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201101120023) 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 7 ways as a sum of consecutive naturals, for example, 11294636 + ... + 11312426.

It is an arithmetic number, because the mean of its divisors is an integer number (25173456000).

Almost surely, 2^201101120021 is an apocalyptic number.

It is an amenable number.

201101120021 is a deficient number, since it is larger than the sum of its proper divisors (286527979).

201101120021 is a wasteful number, since it uses less digits than its factorization.

201101120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33259.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201101120021 its reverse (120021101102), we get a palindrome (321122221123).

The spelling of 201101120021 in words is "two hundred one billion, one hundred one million, one hundred twenty thousand, twenty-one".