121021201020112 has 20 divisors (see below), whose sum is σ = 236553608634660. Its totient is φ = 59975108469248.

The previous prime is 121021201020103. The next prime is 121021201020149. The reversal of 121021201020112 is 211020102120121.

It can be written as a sum of positive squares in 2 ways, for example, as 33544761902656 + 87476439117456 = 5791784^2 + 9352884^2 .

It is a super-2 number, since 2×121021201020112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 33468250687 + ... + 33468254302.

It is an arithmetic number, because the mean of its divisors is an integer number (11827680431733).

Almost surely, 2^{121021201020112} is an apocalyptic number.

It is an amenable number.

121021201020112 is a deficient number, since it is larger than the sum of its proper divisors (115532407614548).

121021201020112 is a wasteful number, since it uses less digits than its factorization.

121021201020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66936505110 (or 66936505104 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121021201020112 its reverse (211020102120121), we get a palindrome (332041303140233).

The spelling of 121021201020112 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred one million, twenty thousand, one hundred twelve".