121011022012001 has 16 divisors (see below), whose sum is σ = 132220385239488. Its totient is φ = 109836490276800.

The previous prime is 121011022011991. The next prime is 121011022012031. The reversal of 121011022012001 is 100210220110121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121011022012001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121011022012031) 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, 20533991 + ... + 25761731.

It is an arithmetic number, because the mean of its divisors is an integer number (8263774077468).

Almost surely, 2^{121011022012001} is an apocalyptic number.

121011022012001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121011022012001 is a deficient number, since it is larger than the sum of its proper divisors (11209363227487).

121011022012001 is a wasteful number, since it uses less digits than its factorization.

121011022012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5231072.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121011022012001 its reverse (100210220110121), we get a palindrome (221221242122122).

The spelling of 121011022012001 in words is "one hundred twenty-one trillion, eleven billion, twenty-two million, twelve thousand, one".