21022010220001 has 16 divisors (see below), whose sum is σ = 24276863316096. Its totient is φ = 17830914132096.

The previous prime is 21022010219957. The next prime is 21022010220019. The reversal of 21022010220001 is 10002201022012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21022010220001 - 2¹¹ = 21022010217953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022010223001) 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, 34271331 + ... + 34879336.

It is an arithmetic number, because the mean of its divisors is an integer number (1517303957256).

Almost surely, 2^{21022010220001} is an apocalyptic number.

It is an amenable number.

21022010220001 is a deficient number, since it is larger than the sum of its proper divisors (3254853096095).

21022010220001 is a wasteful number, since it uses less digits than its factorization.

21022010220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69151128.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21022010220001 its reverse (10002201022012), we get a palindrome (31024211242013).

The spelling of 21022010220001 in words is "twenty-one trillion, twenty-two billion, ten million, two hundred twenty thousand, one".