10402220121 has 8 divisors (see below), whose sum is σ = 13931823360. Its totient is φ = 6903715152.

The previous prime is 10402220107. The next prime is 10402220131. The reversal of 10402220121 is 12102220401.

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

It is not a de Polignac number, because 10402220121 - 2¹⁴ = 10402203737 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10402220121.

It is not an unprimeable number, because it can be changed into a prime (10402220131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7773786 + ... + 7775123.

It is an arithmetic number, because the mean of its divisors is an integer number (1741477920).

Almost surely, 2^10402220121 is an apocalyptic number.

It is an amenable number.

10402220121 is a deficient number, since it is larger than the sum of its proper divisors (3529603239).

10402220121 is a wasteful number, since it uses less digits than its factorization.

10402220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15549135.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10402220121 its reverse (12102220401), we get a palindrome (22504440522).

The spelling of 10402220121 in words is "ten billion, four hundred two million, two hundred twenty thousand, one hundred twenty-one".