21022110201001 has 32 divisors (see below), whose sum is σ = 25960663669248. Its totient is φ = 16576777751040.

The previous prime is 21022110200929. The next prime is 21022110201077. The reversal of 21022110201001 is 10010201122012.

It is not a de Polignac number, because 21022110201001 - 2¹⁹ = 21022109676713 is a prime.

It is a super-3 number, since 3×21022110201001³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (21022110201101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166875900 + ... + 167001826.

It is an arithmetic number, because the mean of its divisors is an integer number (811270739664).

Almost surely, 2^{21022110201001} is an apocalyptic number.

It is an amenable number.

21022110201001 is a deficient number, since it is larger than the sum of its proper divisors (4938553468247).

21022110201001 is a wasteful number, since it uses less digits than its factorization.

21022110201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132121.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21022110201001 its reverse (10010201122012), we get a palindrome (31032311323013).

The spelling of 21022110201001 in words is "twenty-one trillion, twenty-two billion, one hundred ten million, two hundred one thousand, one".