121020036 has 24 divisors (see below), whose sum is σ = 283044384. Its totient is φ = 40245120.

The previous prime is 121020019. The next prime is 121020061. The reversal of 121020036 is 630020121.

It is a super-2 number, since 2×121020036² = 29291698226882592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121019997 and 121020024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6450 + ... + 16841.

It is an arithmetic number, because the mean of its divisors is an integer number (11793516).

Almost surely, 2^121020036 is an apocalyptic number.

It is an amenable number.

121020036 is an abundant number, since it is smaller than the sum of its proper divisors (162024348).

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

121020036 is a wasteful number, since it uses less digits than its factorization.

121020036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23731 (or 23729 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121020036 is about 11000.9106895747. The cubic root of 121020036 is about 494.6360430407.

Adding to 121020036 its reverse (630020121), we get a palindrome (751040157).

The spelling of 121020036 in words is "one hundred twenty-one million, twenty thousand, thirty-six".