201001202122101 has 16 divisors (see below), whose sum is σ = 268880578938048. Its totient is φ = 133561332864000.

The previous prime is 201001202122067. The next prime is 201001202122111. The reversal of 201001202122101 is 101221202100102.

It is not a de Polignac number, because 201001202122101 - 2¹⁸ = 201001201859957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001202122111) 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, 39196501 + ... + 44026901.

It is an arithmetic number, because the mean of its divisors is an integer number (16805036183628).

Almost surely, 2^{201001202122101} is an apocalyptic number.

It is an amenable number.

201001202122101 is a deficient number, since it is larger than the sum of its proper divisors (67879376815947).

201001202122101 is a wasteful number, since it uses less digits than its factorization.

201001202122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4875892.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201001202122101 its reverse (101221202100102), we get a palindrome (302222404222203).

The spelling of 201001202122101 in words is "two hundred one trillion, one billion, two hundred two million, one hundred twenty-two thousand, one hundred one".