21211212122093 has 8 divisors (see below), whose sum is σ = 24241440294720. Its totient is φ = 18180997702560.

The previous prime is 21211212122081. The next prime is 21211212122117. The reversal of 21211212122093 is 39022121211212.

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

It is not a de Polignac number, because 21211212122093 - 2²⁶ = 21211145013229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21211212122033) 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, 110873 + ... + 6514193.

It is an arithmetic number, because the mean of its divisors is an integer number (3030180036840).

Almost surely, 2^{21211212122093} is an apocalyptic number.

It is an amenable number.

21211212122093 is a deficient number, since it is larger than the sum of its proper divisors (3030228172627).

21211212122093 is an equidigital number, since it uses as much as digits as its factorization.

21211212122093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6876547.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 21211212122093 in words is "twenty-one trillion, two hundred eleven billion, two hundred twelve million, one hundred twenty-two thousand, ninety-three".