10202012022121 has 8 divisors (see below), whose sum is σ = 10316113637184. Its totient is φ = 10088167105200.

The previous prime is 10202012022079. The next prime is 10202012022149. The reversal of 10202012022121 is 12122021020201.

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 10202012022121 - 2²³ = 10202003633513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10202012022095 and 10202012022104.

It is not an unprimeable number, because it can be changed into a prime (10202012022151) 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, 64094605 + ... + 64253578.

It is an arithmetic number, because the mean of its divisors is an integer number (1289514204648).

Almost surely, 2^{10202012022121} is an apocalyptic number.

It is an amenable number.

10202012022121 is a deficient number, since it is larger than the sum of its proper divisors (114101615063).

10202012022121 is a wasteful number, since it uses less digits than its factorization.

10202012022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128349071.

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

Adding to 10202012022121 its reverse (12122021020201), we get a palindrome (22324033042322).

The spelling of 10202012022121 in words is "ten trillion, two hundred two billion, twelve million, twenty-two thousand, one hundred twenty-one".