121010023201 has 4 divisors (see below), whose sum is σ = 121010854212. Its totient is φ = 121009192192.

The previous prime is 121010023111. The next prime is 121010023249. The reversal of 121010023201 is 102320010121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 102320010121 = 7 ⋅14617144303.

It can be written as a sum of positive squares in 2 ways, for example, as 78758809600 + 42251213601 = 280640^2 + 205551^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121010023201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121010023501) 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, 133096 + ... + 509641.

It is an arithmetic number, because the mean of its divisors is an integer number (30252713553).

Almost surely, 2^121010023201 is an apocalyptic number.

It is an amenable number.

121010023201 is a deficient number, since it is larger than the sum of its proper divisors (831011).

121010023201 is an equidigital number, since it uses as much as digits as its factorization.

121010023201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831010.

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

Adding to 121010023201 its reverse (102320010121), we get a palindrome (223330033322).

The spelling of 121010023201 in words is "one hundred twenty-one billion, ten million, twenty-three thousand, two hundred one".