211202220121112 has 64 divisors (see below), whose sum is σ = 441203033203200. Its totient is φ = 93956963751040.

The previous prime is 211202220121103. The next prime is 211202220121117. The reversal of 211202220121112 is 211121022202112.

It is a super-3 number, since 3×211202220121112³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211202220121117) 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 15 ways as a sum of consecutive naturals, for example, 289233938 + ... + 289963230.

It is an arithmetic number, because the mean of its divisors is an integer number (6893797393800).

Almost surely, 2^{211202220121112} is an apocalyptic number.

211202220121112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211202220121112 is an abundant number, since it is smaller than the sum of its proper divisors (230000813082088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211202220121112 is a wasteful number, since it uses less digits than its factorization.

211202220121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799376 (or 799372 counting only the distinct ones).

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

Adding to 211202220121112 its reverse (211121022202112), we get a palindrome (422323242323224).

The spelling of 211202220121112 in words is "two hundred eleven trillion, two hundred two billion, two hundred twenty million, one hundred twenty-one thousand, one hundred twelve".