21102210022101 has 8 divisors (see below), whose sum is σ = 30300609262560. Its totient is φ = 12985975398192.

The previous prime is 21102210022093. The next prime is 21102210022121. The reversal of 21102210022101 is 10122001220112.

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

It is not a de Polignac number, because 21102210022101 - 2³ = 21102210022093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102210022121) 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, 270541154091 + ... + 270541154168.

It is an arithmetic number, because the mean of its divisors is an integer number (3787576157820).

Almost surely, 2^{21102210022101} is an apocalyptic number.

It is an amenable number.

21102210022101 is a deficient number, since it is larger than the sum of its proper divisors (9198399240459).

21102210022101 is a wasteful number, since it uses less digits than its factorization.

21102210022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541082308275.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21102210022101 its reverse (10122001220112), we get a palindrome (31224211242213).

The spelling of 21102210022101 in words is "twenty-one trillion, one hundred two billion, two hundred ten million, twenty-two thousand, one hundred one".