121001162251 has 8 divisors (see below), whose sum is σ = 121567288320. Its totient is φ = 120435775488.

The previous prime is 121001162221. The next prime is 121001162257. The reversal of 121001162251 is 152261100121.

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

It is a cyclic number.

It is not a de Polignac number, because 121001162251 - 2¹³ = 121001154059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001162257) 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, 144645 + ... + 512761.

It is an arithmetic number, because the mean of its divisors is an integer number (15195911040).

Almost surely, 2^121001162251 is an apocalyptic number.

121001162251 is a deficient number, since it is larger than the sum of its proper divisors (566126069).

121001162251 is a wasteful number, since it uses less digits than its factorization.

121001162251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369653.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 121001162251 its reverse (152261100121), we get a palindrome (273262262372).

The spelling of 121001162251 in words is "one hundred twenty-one billion, one million, one hundred sixty-two thousand, two hundred fifty-one".