211212222093 has 12 divisors (see below), whose sum is σ = 318348856800. Its totient is φ = 134686054536.

The previous prime is 211212222083. The next prime is 211212222121. The reversal of 211212222093 is 390222212112.

211212222093 is a `hidden beast` number, since 211 + 21 + 222 + 209 + 3 = 666.

It is not a de Polignac number, because 211212222093 - 2¹⁰ = 211212221069 is a prime.

It is a super-2 number, since 2×211212222093² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212222043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510174243 + ... + 510174656.

It is an arithmetic number, because the mean of its divisors is an integer number (26529071400).

Almost surely, 2^211212222093 is an apocalyptic number.

211212222093 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

211212222093 is a deficient number, since it is larger than the sum of its proper divisors (107136634707).

211212222093 is a wasteful number, since it uses less digits than its factorization.

211212222093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020348928 (or 1020348925 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 211212222093 in words is "two hundred eleven billion, two hundred twelve million, two hundred twenty-two thousand, ninety-three".