10021121212001 has 32 divisors (see below), whose sum is σ = 10919977141248. Its totient is φ = 9160271078400.

The previous prime is 10021121211991. The next prime is 10021121212007. The reversal of 10021121212001 is 10021212112001.

It is not a de Polignac number, because 10021121212001 - 2¹⁸ = 10021120949857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10021121212007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 751934600 + ... + 751947926.

It is an arithmetic number, because the mean of its divisors is an integer number (341249285664).

Almost surely, 2^{10021121212001} is an apocalyptic number.

It is an amenable number.

10021121212001 is a deficient number, since it is larger than the sum of its proper divisors (898855929247).

10021121212001 is a wasteful number, since it uses less digits than its factorization.

10021121212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21761.

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

Adding to 10021121212001 its reverse (10021212112001), we get a palindrome (20042333324002).

The spelling of 10021121212001 in words is "ten trillion, twenty-one billion, one hundred twenty-one million, two hundred twelve thousand, one".