201101201010021 has 32 divisors (see below), whose sum is σ = 290151154782720. Its totient is φ = 123158764209600.

The previous prime is 201101201010013. The next prime is 201101201010089. The reversal of 201101201010021 is 120010102101102.

It is not a de Polignac number, because 201101201010021 - 2³ = 201101201010013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201101201009979 and 201101201010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201101201010221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108784210 + ... + 110617388.

It is an arithmetic number, because the mean of its divisors is an integer number (9067223586960).

Almost surely, 2^{201101201010021} is an apocalyptic number.

It is an amenable number.

201101201010021 is a deficient number, since it is larger than the sum of its proper divisors (89049953772699).

201101201010021 is a wasteful number, since it uses less digits than its factorization.

201101201010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846737.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201101201010021 its reverse (120010102101102), we get a palindrome (321111303111123).

The spelling of 201101201010021 in words is "two hundred one trillion, one hundred one billion, two hundred one million, ten thousand, twenty-one".