121245033 has 16 divisors (see below), whose sum is σ = 198966656. Its totient is φ = 63953280.

The previous prime is 121245001. The next prime is 121245049. The reversal of 121245033 is 330542121.

It is not a de Polignac number, because 121245033 - 2⁵ = 121245001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (121245073) 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, 221788 + ... + 222333.

It is an arithmetic number, because the mean of its divisors is an integer number (12435416).

Almost surely, 2^121245033 is an apocalyptic number.

121245033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121245033 is a deficient number, since it is larger than the sum of its proper divisors (77721623).

121245033 is a wasteful number, since it uses less digits than its factorization.

121245033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444144.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 121245033 is about 11011.1322306110. The cubic root of 121245033 is about 494.9423910101.

Adding to 121245033 its reverse (330542121), we get a palindrome (451787154).

The spelling of 121245033 in words is "one hundred twenty-one million, two hundred forty-five thousand, thirty-three".