10021121012001 has 16 divisors (see below), whose sum is σ = 14583983378688. Its totient is φ = 6070153606800.

The previous prime is 10021121011963. The next prime is 10021121012003. The reversal of 10021121012001 is 10021012112001.

It is not a de Polignac number, because 10021121012001 - 2²² = 10021116817697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10021121012003) 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, 81264135 + ... + 81387356.

It is an arithmetic number, because the mean of its divisors is an integer number (911498961168).

Almost surely, 2^{10021121012001} is an apocalyptic number.

10021121012001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10021121012001 is a deficient number, since it is larger than the sum of its proper divisors (4562862366687).

10021121012001 is a wasteful number, since it uses less digits than its factorization.

10021121012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162653372.

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

Adding to 10021121012001 its reverse (10021012112001), we get a palindrome (20042133124002).

The spelling of 10021121012001 in words is "ten trillion, twenty-one billion, one hundred twenty-one million, twelve thousand, one".