10202012012221 has 8 divisors (see below), whose sum is σ = 10369389888000. Its totient is φ = 10034638387440.

The previous prime is 10202012012197. The next prime is 10202012012233. The reversal of 10202012012221 is 12221021020201.

It is a happy number.

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 10202012012221 - 2⁵ = 10202012012189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202012012195 and 10202012012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202012012251) 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, 3970380 + ... + 6013978.

It is an arithmetic number, because the mean of its divisors is an integer number (1296173736000).

Almost surely, 2^{10202012012221} is an apocalyptic number.

It is an amenable number.

10202012012221 is a deficient number, since it is larger than the sum of its proper divisors (167377875779).

10202012012221 is an equidigital number, since it uses as much as digits as its factorization.

10202012012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125499.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10202012012221 its reverse (12221021020201), we get a palindrome (22423033032422).

The spelling of 10202012012221 in words is "ten trillion, two hundred two billion, twelve million, twelve thousand, two hundred twenty-one".