21110102220001 has 8 divisors (see below), whose sum is σ = 22221238227680. Its totient is φ = 19998974011968.

The previous prime is 21110102219993. The next prime is 21110102220037. The reversal of 21110102220001 is 10002220101112.

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 21110102220001 - 2³ = 21110102219993 is a prime.

It is a super-2 number, since 2×21110102220001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110102220041) 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, 4084510 + ... + 7674856.

It is an arithmetic number, because the mean of its divisors is an integer number (2777654778460).

Almost surely, 2^{21110102220001} is an apocalyptic number.

It is an amenable number.

21110102220001 is a deficient number, since it is larger than the sum of its proper divisors (1111136007679).

21110102220001 is a wasteful number, since it uses less digits than its factorization.

21110102220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899823.

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

Adding to 21110102220001 its reverse (10002220101112), we get a palindrome (31112322321113).

The spelling of 21110102220001 in words is "twenty-one trillion, one hundred ten billion, one hundred two million, two hundred twenty thousand, one".