21220100000201 has 8 divisors (see below), whose sum is σ = 22338666259200. Its totient is φ = 20117863175872.

The previous prime is 21220100000173. The next prime is 21220100000287. The reversal of 21220100000201 is 10200000102212.

It is a happy number.

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 21220100000201 - 2⁶ = 21220100000137 is a prime.

It is a super-4 number, since 4×21220100000201⁴ (a number of 54 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21220100002201) 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, 4082356001 + ... + 4082361198.

It is an arithmetic number, because the mean of its divisors is an integer number (2792333282400).

Almost surely, 2^{21220100000201} is an apocalyptic number.

It is an amenable number.

21220100000201 is a deficient number, since it is larger than the sum of its proper divisors (1118566258999).

21220100000201 is a wasteful number, since it uses less digits than its factorization.

21220100000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8164717335.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21220100000201 its reverse (10200000102212), we get a palindrome (31420100102413).

The spelling of 21220100000201 in words is "twenty-one trillion, two hundred twenty billion, one hundred million, two hundred one", and thus it is an aban number.