121026001 has 4 divisors (see below), whose sum is σ = 124297012. Its totient is φ = 117754992.

The previous prime is 121025999. The next prime is 121026007. The reversal of 121026001 is 100620121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100620121 = 7 ⋅14374303.

It can be written as a sum of positive squares in 2 ways, for example, as 113976976 + 7049025 = 10676^2 + 2655^2 .

It is a cyclic number.

It is not a de Polignac number, because 121026001 - 2¹ = 121025999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121026007) 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, 1635450 + ... + 1635523.

It is an arithmetic number, because the mean of its divisors is an integer number (31074253).

Almost surely, 2^121026001 is an apocalyptic number.

It is an amenable number.

121026001 is a deficient number, since it is larger than the sum of its proper divisors (3271011).

121026001 is an equidigital number, since it uses as much as digits as its factorization.

121026001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3271010.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 121026001 is about 11001.1818001522. The cubic root of 121026001 is about 494.6441696717.

Adding to 121026001 its reverse (100620121), we get a palindrome (221646122).

The spelling of 121026001 in words is "one hundred twenty-one million, twenty-six thousand, one".