211121202121112 has 8 divisors (see below), whose sum is σ = 395852253977100. Its totient is φ = 105560601060552.

The previous prime is 211121202121103. The next prime is 211121202121117.

It is a happy number.

211121202121112 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×211121202121112² (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 (211121202121117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13195075132562 + ... + 13195075132577.

Almost surely, 2^{211121202121112} is an apocalyptic number.

It is an amenable number.

211121202121112 is a deficient number, since it is larger than the sum of its proper divisors (184731051855988).

211121202121112 is a wasteful number, since it uses less digits than its factorization.

211121202121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26390150265145 (or 26390150265141 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

It can be divided in two parts, 21112120 and 2121112, that added together give a palindrome (23233232).

The spelling of 211121202121112 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred two million, one hundred twenty-one thousand, one hundred twelve".