212111132101 has 32 divisors (see below), whose sum is σ = 241767187200. Its totient is φ = 184319815680.

The previous prime is 212111132099. The next prime is 212111132113. The reversal of 212111132101 is 101231111212.

It is a happy number.

It is not a de Polignac number, because 212111132101 - 2¹ = 212111132099 is a prime.

It is a super-2 number, since 2×212111132101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212111132171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73469680 + ... + 73472566.

It is an arithmetic number, because the mean of its divisors is an integer number (7555224600).

Almost surely, 2^212111132101 is an apocalyptic number.

It is an amenable number.

212111132101 is a deficient number, since it is larger than the sum of its proper divisors (29656055099).

212111132101 is a wasteful number, since it uses less digits than its factorization.

212111132101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5149.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 212111132101 its reverse (101231111212), we get a palindrome (313342243313).

The spelling of 212111132101 in words is "two hundred twelve billion, one hundred eleven million, one hundred thirty-two thousand, one hundred one".