102211121011112 has 8 divisors (see below), whose sum is σ = 191645851895850. Its totient is φ = 51105560505552.

The previous prime is 102211121011079. The next prime is 102211121011117. The reversal of 102211121011112 is 211110121112201.

It can be written as a sum of positive squares in only one way, i.e., 100049086022116 + 2162034988996 = 10002454^2 + 1470386^2 .

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

It is a super-2 number, since 2×102211121011112² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102211121011117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6388195063187 + ... + 6388195063202.

Almost surely, 2^{102211121011112} is an apocalyptic number.

It is an amenable number.

102211121011112 is a deficient number, since it is larger than the sum of its proper divisors (89434730884738).

102211121011112 is a wasteful number, since it uses less digits than its factorization.

102211121011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12776390126395 (or 12776390126391 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 102211121011112 its reverse (211110121112201), we get a palindrome (313321242123313).

The spelling of 102211121011112 in words is "one hundred two trillion, two hundred eleven billion, one hundred twenty-one million, eleven thousand, one hundred twelve".