211212120102122 has 64 divisors (see below), whose sum is σ = 343271265942528. Its totient is φ = 97214895360000.

The previous prime is 211212120102121. The next prime is 211212120102127. The reversal of 211212120102122 is 221201021212112.

It is a super-2 number, since 2×211212120102122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211212120102094 and 211212120102103.

It is not an unprimeable number, because it can be changed into a prime (211212120102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49575938 + ... + 53667474.

It is an arithmetic number, because the mean of its divisors is an integer number (5363613530352).

Almost surely, 2^{211212120102122} is an apocalyptic number.

211212120102122 is a deficient number, since it is larger than the sum of its proper divisors (132059145840406).

211212120102122 is a wasteful number, since it uses less digits than its factorization.

211212120102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091975.

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

Adding to 211212120102122 its reverse (221201021212112), we get a palindrome (432413141314234).

The spelling of 211212120102122 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred twenty million, one hundred two thousand, one hundred twenty-two".