20021110220001 has 8 divisors (see below), whose sum is σ = 29121614865504. Its totient is φ = 12134006193920.

The previous prime is 20021110219993. The next prime is 20021110220029. The reversal of 20021110220001 is 10002201112002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20021110220001 - 2³ = 20021110219993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20021110220071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303350154816 + ... + 303350154881.

It is an arithmetic number, because the mean of its divisors is an integer number (3640201858188).

Almost surely, 2^{20021110220001} is an apocalyptic number.

It is an amenable number.

20021110220001 is a deficient number, since it is larger than the sum of its proper divisors (9100504645503).

20021110220001 is a wasteful number, since it uses less digits than its factorization.

20021110220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606700309711.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20021110220001 its reverse (10002201112002), we get a palindrome (30023311332003).

The spelling of 20021110220001 in words is "twenty trillion, twenty-one billion, one hundred ten million, two hundred twenty thousand, one".