120021033 has 16 divisors (see below), whose sum is σ = 178292736. Its totient is φ = 71191440.

The previous prime is 120021023. The next prime is 120021049. The reversal of 120021033 is 330120021.

It is a happy number.

It is not a de Polignac number, because 120021033 - 2⁴ = 120021017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120021023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37141 + ... + 40242.

It is an arithmetic number, because the mean of its divisors is an integer number (11143296).

Almost surely, 2^120021033 is an apocalyptic number.

It is an amenable number.

120021033 is a deficient number, since it is larger than the sum of its proper divisors (58271703).

120021033 is a wasteful number, since it uses less digits than its factorization.

120021033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77444.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 120021033 is about 10955.4111287528. The cubic root of 120021033 is about 493.2712308707.

Adding to 120021033 its reverse (330120021), we get a palindrome (450141054).

The spelling of 120021033 in words is "one hundred twenty million, twenty-one thousand, thirty-three".