211121212010102 has 16 divisors (see below), whose sum is σ = 337481456389632. Its totient is φ = 98822694982440.

The previous prime is 211121212010101. The next prime is 211121212010119. The reversal of 211121212010102 is 201010212121112.

It is a super-2 number, since 2×211121212010102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121212010101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48825440024 + ... + 48825444347.

It is an arithmetic number, because the mean of its divisors is an integer number (21092591024352).

Almost surely, 2^{211121212010102} is an apocalyptic number.

211121212010102 is a deficient number, since it is larger than the sum of its proper divisors (126360244379530).

211121212010102 is a wasteful number, since it uses less digits than its factorization.

211121212010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97650884443.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211121212010102 its reverse (201010212121112), we get a palindrome (412131424131214).

The spelling of 211121212010102 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred twelve million, ten thousand, one hundred two".