211212212010122 has 24 divisors (see below), whose sum is σ = 331208612918820. Its totient is φ = 101009447200640.

The previous prime is 211212212010103. The next prime is 211212212010211. The reversal of 211212212010122 is 221010212212112.

It can be written as a sum of positive squares in 2 ways, for example, as 209884787734801 + 1327424275321 = 14487401^2 + 1152139^2 .

It is a super-2 number, since 2×211212212010122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211212212010094 and 211212212010103.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16023872 + ... + 26061252.

Almost surely, 2^{211212212010122} is an apocalyptic number.

211212212010122 is a deficient number, since it is larger than the sum of its proper divisors (119996400908698).

211212212010122 is a wasteful number, since it uses less digits than its factorization.

211212212010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057318 (or 10057295 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211212212010122 its reverse (221010212212112), we get a palindrome (432222424222234).

The spelling of 211212212010122 in words is "two hundred eleven trillion, two hundred twelve billion, two hundred twelve million, ten thousand, one hundred twenty-two".