121001021133 has 8 divisors (see below), whose sum is σ = 161337434496. Its totient is φ = 80665977600.

The previous prime is 121001021129. The next prime is 121001021173. The reversal of 121001021133 is 331120100121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121001021133 - 2² = 121001021129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001021173) 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, 114708 + ... + 505133.

It is an arithmetic number, because the mean of its divisors is an integer number (20167179312).

Almost surely, 2^121001021133 is an apocalyptic number.

It is an amenable number.

121001021133 is a deficient number, since it is larger than the sum of its proper divisors (40336413363).

121001021133 is an equidigital number, since it uses as much as digits as its factorization.

121001021133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684915.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121001021133 its reverse (331120100121), we get a palindrome (452121121254).

The spelling of 121001021133 in words is "one hundred twenty-one billion, one million, twenty-one thousand, one hundred thirty-three".