221010122201001 has 32 divisors (see below), whose sum is σ = 345930905026560. Its totient is φ = 122859923587776.

The previous prime is 221010122200997. The next prime is 221010122201039. The reversal of 221010122201001 is 100102221010122.

It is not a de Polignac number, because 221010122201001 - 2² = 221010122200997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221010122201201) 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, 15946201 + ... + 26387526.

It is an arithmetic number, because the mean of its divisors is an integer number (10810340782080).

Almost surely, 2^{221010122201001} is an apocalyptic number.

221010122201001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

221010122201001 is a deficient number, since it is larger than the sum of its proper divisors (124920782825559).

221010122201001 is a wasteful number, since it uses less digits than its factorization.

221010122201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42340493.

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

Adding to 221010122201001 its reverse (100102221010122), we get a palindrome (321112343211123).

The spelling of 221010122201001 in words is "two hundred twenty-one trillion, ten billion, one hundred twenty-two million, two hundred one thousand, one".