121011012001 has 8 divisors (see below), whose sum is σ = 134820779904. Its totient is φ = 107669371920.

The previous prime is 121011011999. The next prime is 121011012013. The reversal of 121011012001 is 100210110121.

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

It is not a de Polignac number, because 121011012001 - 2¹ = 121011011999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121011012071) 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, 117031410 + ... + 117032443.

It is an arithmetic number, because the mean of its divisors is an integer number (16852597488).

Almost surely, 2^121011012001 is an apocalyptic number.

121011012001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121011012001 is a deficient number, since it is larger than the sum of its proper divisors (13809767903).

121011012001 is a wasteful number, since it uses less digits than its factorization.

121011012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234063911.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121011012001 its reverse (100210110121), we get a palindrome (221221122122).

The spelling of 121011012001 in words is "one hundred twenty-one billion, eleven million, twelve thousand, one".