121000121120001 has 16 divisors (see below), whose sum is σ = 161445672235008. Its totient is φ = 80610673534800.

The previous prime is 121000121119987. The next prime is 121000121120003. The reversal of 121000121120001 is 100021121000121.

It is not a de Polignac number, because 121000121120001 - 2¹⁵ = 121000121087233 is a prime.

It is a super-2 number, since 2×121000121120001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121000121120003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30863656 + ... + 34562486.

It is an arithmetic number, because the mean of its divisors is an integer number (10090354514688).

Almost surely, 2^{121000121120001} is an apocalyptic number.

It is an amenable number.

121000121120001 is a deficient number, since it is larger than the sum of its proper divisors (40445551115007).

121000121120001 is a wasteful number, since it uses less digits than its factorization.

121000121120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706412.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121000121120001 its reverse (100021121000121), we get a palindrome (221021242120122).

The spelling of 121000121120001 in words is "one hundred twenty-one trillion, one hundred twenty-one million, one hundred twenty thousand, one".