151121211001 has 4 divisors (see below), whose sum is σ = 151125656400. Its totient is φ = 151116765604.

The previous prime is 151121210987. The next prime is 151121211019. The reversal of 151121211001 is 100112121151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 151121211001 - 2¹³ = 151121202809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151121211041) 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, 2171311 + ... + 2239828.

It is an arithmetic number, because the mean of its divisors is an integer number (37781414100).

Almost surely, 2^151121211001 is an apocalyptic number.

It is an amenable number.

151121211001 is a deficient number, since it is larger than the sum of its proper divisors (4445399).

151121211001 is an equidigital number, since it uses as much as digits as its factorization.

151121211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445398.

The product of its (nonzero) digits is 20, while the sum is 16.

Adding to 151121211001 its reverse (100112121151), we get a palindrome (251233332152).

The spelling of 151121211001 in words is "one hundred fifty-one billion, one hundred twenty-one million, two hundred eleven thousand, one".