10102020012221 has 8 divisors (see below), whose sum is σ = 10204256871264. Its totient is φ = 9999826621200.

The previous prime is 10102020012209. The next prime is 10102020012277. The reversal of 10102020012221 is 12221002020101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10102020012221 - 2⁶ = 10102020012157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10102020012196 and 10102020012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102020612221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10399751 + ... + 11329556.

It is an arithmetic number, because the mean of its divisors is an integer number (1275532108908).

Almost surely, 2^{10102020012221} is an apocalyptic number.

It is an amenable number.

10102020012221 is a deficient number, since it is larger than the sum of its proper divisors (102236859043).

10102020012221 is a wasteful number, since it uses less digits than its factorization.

10102020012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21734011.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10102020012221 its reverse (12221002020101), we get a palindrome (22323022032322).

The spelling of 10102020012221 in words is "ten trillion, one hundred two billion, twenty million, twelve thousand, two hundred twenty-one".