2101210122201 has 16 divisors (see below), whose sum is σ = 2815448064000. Its totient is φ = 1393905800448.

The previous prime is 2101210122181. The next prime is 2101210122229. The reversal of 2101210122201 is 1022210121012.

It is not a de Polignac number, because 2101210122201 - 2¹⁴ = 2101210105817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101210122241) 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, 1527001 + ... + 2556198.

It is an arithmetic number, because the mean of its divisors is an integer number (175965504000).

Almost surely, 2^{2101210122201} is an apocalyptic number.

It is an amenable number.

2101210122201 is a deficient number, since it is larger than the sum of its proper divisors (714237941799).

2101210122201 is a wasteful number, since it uses less digits than its factorization.

2101210122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084048.

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

Adding to 2101210122201 its reverse (1022210121012), we get a palindrome (3123420243213).

The spelling of 2101210122201 in words is "two trillion, one hundred one billion, two hundred ten million, one hundred twenty-two thousand, two hundred one".