121011201001121 has 4 divisors (see below), whose sum is σ = 121011295594644. Its totient is φ = 121011106407600.

The previous prime is 121011201001091. The next prime is 121011201001181. The reversal of 121011201001121 is 121100102110121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104803048376896 + 16208152624225 = 10237336^2 + 4025935^2 .

It is a cyclic number.

It is not a de Polignac number, because 121011201001121 - 2¹⁸ = 121011200738977 is a prime.

It is a super-2 number, since 2×121011201001121² (a number of 29 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 = 121011201001096 and 121011201001105.

It is not an unprimeable number, because it can be changed into a prime (121011201001181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45351170 + ... + 47945291.

It is an arithmetic number, because the mean of its divisors is an integer number (30252823898661).

Almost surely, 2^{121011201001121} is an apocalyptic number.

It is an amenable number.

121011201001121 is a deficient number, since it is larger than the sum of its proper divisors (94593523).

121011201001121 is an equidigital number, since it uses as much as digits as its factorization.

121011201001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94593522.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121011201001121 its reverse (121100102110121), we get a palindrome (242111303111242).

The spelling of 121011201001121 in words is "one hundred twenty-one trillion, eleven billion, two hundred one million, one thousand, one hundred twenty-one".