201121110100012 has 6 divisors (see below), whose sum is σ = 351961942675028. Its totient is φ = 100560555050004.

The previous prime is 201121110099983. The next prime is 201121110100021. The reversal of 201121110100012 is 210001011121102.

It is a happy number.

It is a super-2 number, since 2×201121110100012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201121110099965 and 201121110100001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25140138762498 + ... + 25140138762505.

Almost surely, 2^{201121110100012} is an apocalyptic number.

It is an amenable number.

201121110100012 is a deficient number, since it is larger than the sum of its proper divisors (150840832575016).

201121110100012 is a wasteful number, since it uses less digits than its factorization.

201121110100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50280277525007 (or 50280277525005 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 201121110100012 its reverse (210001011121102), we get a palindrome (411122121221114).

The spelling of 201121110100012 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred ten million, one hundred thousand, twelve".