33130200121 has 4 divisors (see below), whose sum is σ = 33383102544. Its totient is φ = 32877297700.

The previous prime is 33130200113. The next prime is 33130200137. The reversal of 33130200121 is 12100203133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12100203133 = 149 ⋅81209417.

It is a cyclic number.

It is not a de Polignac number, because 33130200121 - 2³ = 33130200113 is a prime.

It is a super-2 number, since 2×33130200121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33130200095 and 33130200104.

It is not an unprimeable number, because it can be changed into a prime (33130200221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126451015 + ... + 126451276.

It is an arithmetic number, because the mean of its divisors is an integer number (8345775636).

Almost surely, 2^33130200121 is an apocalyptic number.

It is an amenable number.

33130200121 is a deficient number, since it is larger than the sum of its proper divisors (252902423).

33130200121 is a wasteful number, since it uses less digits than its factorization.

33130200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252902422.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 33130200121 its reverse (12100203133), we get a palindrome (45230403254).

The spelling of 33130200121 in words is "thirty-three billion, one hundred thirty million, two hundred thousand, one hundred twenty-one".