121001121011211 has 8 divisors (see below), whose sum is σ = 184382660588544. Its totient is φ = 69143497720680.

The previous prime is 121001121011119. The next prime is 121001121011269. The reversal of 121001121011211 is 112110121100121.

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

It is not a de Polignac number, because 121001121011211 - 2²¹ = 121001118914059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121001121016211) 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 7 ways as a sum of consecutive naturals, for example, 2880979071675 + ... + 2880979071716.

It is an arithmetic number, because the mean of its divisors is an integer number (23047832573568).

Almost surely, 2^{121001121011211} is an apocalyptic number.

121001121011211 is a deficient number, since it is larger than the sum of its proper divisors (63381539577333).

121001121011211 is an equidigital number, since it uses as much as digits as its factorization.

121001121011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5761958143401.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 121001121011211 its reverse (112110121100121), we get a palindrome (233111242111332).

The spelling of 121001121011211 in words is "one hundred twenty-one trillion, one billion, one hundred twenty-one million, eleven thousand, two hundred eleven".