10121121020001 has 16 divisors (see below), whose sum is σ = 13498080051200. Its totient is φ = 6745788231120.

The previous prime is 10121121019957. The next prime is 10121121020033. The reversal of 10121121020001 is 10002012112101.

It is not a de Polignac number, because 10121121020001 - 2⁹ = 10121121019489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121121020041) 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, 260814066 + ... + 260852868.

It is an arithmetic number, because the mean of its divisors is an integer number (843630003200).

Almost surely, 2^{10121121020001} is an apocalyptic number.

It is an amenable number.

10121121020001 is a deficient number, since it is larger than the sum of its proper divisors (3376959031199).

10121121020001 is a wasteful number, since it uses less digits than its factorization.

10121121020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57516.

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

Adding to 10121121020001 its reverse (10002012112101), we get a palindrome (20123133132102).

The spelling of 10121121020001 in words is "ten trillion, one hundred twenty-one billion, one hundred twenty-one million, twenty thousand, one".