10121012011112 has 8 divisors (see below), whose sum is σ = 18976897520850. Its totient is φ = 5060506005552.

The previous prime is 10121012011111. The next prime is 10121012011139. The reversal of 10121012011112 is 21111021012101.

It can be written as a sum of positive squares in only one way, i.e., 10058754774916 + 62257236196 = 3171554^2 + 249514^2 .

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

It is a super-2 number, since 2×10121012011112² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10121012011111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632563250687 + ... + 632563250702.

Almost surely, 2^{10121012011112} is an apocalyptic number.

It is an amenable number.

10121012011112 is a deficient number, since it is larger than the sum of its proper divisors (8855885509738).

10121012011112 is a wasteful number, since it uses less digits than its factorization.

10121012011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265126501395 (or 1265126501391 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10121012011112 its reverse (21111021012101), we get a palindrome (31232033023213).

The spelling of 10121012011112 in words is "ten trillion, one hundred twenty-one billion, twelve million, eleven thousand, one hundred twelve".