10010012101221 has 32 divisors (see below), whose sum is σ = 14817136508928. Its totient is φ = 5960468687040.

The previous prime is 10010012101213. The next prime is 10010012101259. The reversal of 10010012101221 is 12210121001001.

It is not a de Polignac number, because 10010012101221 - 2³ = 10010012101213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10010012101197 and 10010012101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010012101721) 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, 11162766 + ... + 12026111.

It is an arithmetic number, because the mean of its divisors is an integer number (463035515904).

Almost surely, 2^{10010012101221} is an apocalyptic number.

10010012101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10010012101221 is a deficient number, since it is larger than the sum of its proper divisors (4807124407707).

10010012101221 is a wasteful number, since it uses less digits than its factorization.

10010012101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23189121.

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

Adding to 10010012101221 its reverse (12210121001001), we get a palindrome (22220133102222).

The spelling of 10010012101221 in words is "ten trillion, ten billion, twelve million, one hundred one thousand, two hundred twenty-one".