201121012222101 has 12 divisors (see below), whose sum is σ = 290524348535200. Its totient is φ = 134073188767080.

The previous prime is 201121012222063. The next prime is 201121012222133. The reversal of 201121012222101 is 101222210121102.

201121012222101 is a `hidden beast` number, since 20 + 1 + 1 + 210 + 1 + 222 + 210 + 1 = 666.

It is not a de Polignac number, because 201121012222101 - 2¹⁴ = 201121012205717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121012222901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 623667151 + ... + 623989548.

Almost surely, 2^{201121012222101} is an apocalyptic number.

It is an amenable number.

201121012222101 is a deficient number, since it is larger than the sum of its proper divisors (89403336313099).

201121012222101 is a wasteful number, since it uses less digits than its factorization.

201121012222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247674616 (or 1247674613 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201121012222101 its reverse (101222210121102), we get a palindrome (302343222343203).

The spelling of 201121012222101 in words is "two hundred one trillion, one hundred twenty-one billion, twelve million, two hundred twenty-two thousand, one hundred one".