202111210011012 has 12 divisors (see below), whose sum is σ = 471592823359056. Its totient is φ = 67370403337000.

The previous prime is 202111210010939. The next prime is 202111210011071. The reversal of 202111210011012 is 210110012111202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×202111210011012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202111210010982 and 202111210011000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8421300417114 + ... + 8421300417137.

It is an arithmetic number, because the mean of its divisors is an integer number (39299401946588).

Almost surely, 2^{202111210011012} is an apocalyptic number.

It is an amenable number.

202111210011012 is an abundant number, since it is smaller than the sum of its proper divisors (269481613348044).

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

202111210011012 is a wasteful number, since it uses less digits than its factorization.

202111210011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16842600834258 (or 16842600834256 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 202111210011012 its reverse (210110012111202), we get a palindrome (412221222122214).

The spelling of 202111210011012 in words is "two hundred two trillion, one hundred eleven billion, two hundred ten million, eleven thousand, twelve".