211212121101099 has 16 divisors (see below), whose sum is σ = 282416511952512. Its totient is φ = 140407912755968.

The previous prime is 211212121101083. The next prime is 211212121101103. The reversal of 211212121101099 is 990101121212112.

It is a cyclic number.

It is not a de Polignac number, because 211212121101099 - 2⁴ = 211212121101083 is a prime.

It is a super-2 number, since 2×211212121101099² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211212121101029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123523024 + ... + 125221250.

It is an arithmetic number, because the mean of its divisors is an integer number (17651031997032).

Almost surely, 2^{211212121101099} is an apocalyptic number.

211212121101099 is a deficient number, since it is larger than the sum of its proper divisors (71204390851413).

211212121101099 is a wasteful number, since it uses less digits than its factorization.

211212121101099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816026.

The product of its (nonzero) digits is 1296, while the sum is 33.

The spelling of 211212121101099 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred twenty-one million, one hundred one thousand, ninety-nine".