121120242020136 has 96 divisors (see below), whose sum is σ = 328120315810560. Its totient is φ = 40362790934016.

The previous prime is 121120242020119. The next prime is 121120242020147. The reversal of 121120242020136 is 631020242021121.

121120242020136 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 2 + 0 + 2 + 420 + 201 + 36 = 666.

It is a super-2 number, since 2×121120242020136² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6963726256 + ... + 6963743648.

It is an arithmetic number, because the mean of its divisors is an integer number (3417919956360).

Almost surely, 2^{121120242020136} is an apocalyptic number.

It is an amenable number.

121120242020136 is an abundant number, since it is smaller than the sum of its proper divisors (207000073790424).

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

121120242020136 is a wasteful number, since it uses less digits than its factorization.

121120242020136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37295 (or 37288 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 121120242020136 its reverse (631020242021121), we get a palindrome (752140484041257).

The spelling of 121120242020136 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred forty-two million, twenty thousand, one hundred thirty-six".