33401210121 has 24 divisors (see below), whose sum is σ = 51967858176. Its totient is φ = 20612243520.

The previous prime is 33401210119. The next prime is 33401210131. The reversal of 33401210121 is 12101210433.

33401210121 is a `hidden beast` number, since 33 + 401 + 210 + 1 + 21 = 666.

It is not a de Polignac number, because 33401210121 - 2¹ = 33401210119 is a prime.

It is a super-2 number, since 2×33401210121² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33401210094 and 33401210103.

It is not an unprimeable number, because it can be changed into a prime (33401210111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2596140 + ... + 2608973.

It is an arithmetic number, because the mean of its divisors is an integer number (2165327424).

Almost surely, 2^33401210121 is an apocalyptic number.

33401210121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33401210121 is a deficient number, since it is larger than the sum of its proper divisors (18566648055).

33401210121 is a wasteful number, since it uses less digits than its factorization.

33401210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5205173 (or 5205170 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 33401210121 its reverse (12101210433), we get a palindrome (45502420554).

The spelling of 33401210121 in words is "thirty-three billion, four hundred one million, two hundred ten thousand, one hundred twenty-one".