121133238 has 16 divisors (see below), whose sum is σ = 243622080. Its totient is φ = 40151816.

The previous prime is 121133237. The next prime is 121133263. The reversal of 121133238 is 832331121.

It is a super-2 number, since 2×121133238² = 29346522696729288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121133231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55320 + ... + 57467.

It is an arithmetic number, because the mean of its divisors is an integer number (15226380).

Almost surely, 2^121133238 is an apocalyptic number.

121133238 is an abundant number, since it is smaller than the sum of its proper divisors (122488842).

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

121133238 is a wasteful number, since it uses less digits than its factorization.

121133238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112971.

The product of its digits is 864, while the sum is 24.

The square root of 121133238 is about 11006.0546064428. The cubic root of 121133238 is about 494.7902223029.

Adding to 121133238 its reverse (832331121), we get a palindrome (953464359).

It can be divided in two parts, 12113 and 3238, that added together give a palindrome (15351).

The spelling of 121133238 in words is "one hundred twenty-one million, one hundred thirty-three thousand, two hundred thirty-eight".