121022121020001 has 16 divisors (see below), whose sum is σ = 161616818740608. Its totient is φ = 80554516016000.

The previous prime is 121022121019997. The next prime is 121022121020023. The reversal of 121022121020001 is 100020121220121.

It is a cyclic number.

It is not a de Polignac number, because 121022121020001 - 2² = 121022121019997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121022121010001) 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, 7195950 + ... + 17141351.

It is an arithmetic number, because the mean of its divisors is an integer number (10101051171288).

Almost surely, 2^{121022121020001} is an apocalyptic number.

It is an amenable number.

121022121020001 is a deficient number, since it is larger than the sum of its proper divisors (40594697720607).

121022121020001 is a wasteful number, since it uses less digits than its factorization.

121022121020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24339912.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121022121020001 its reverse (100020121220121), we get a palindrome (221042242240122).

The spelling of 121022121020001 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred twenty-one million, twenty thousand, one".