10201121226 has 24 divisors (see below), whose sum is σ = 22104394884. Its totient is φ = 3400071360.

The previous prime is 10201121221. The next prime is 10201121233. The reversal of 10201121226 is 62212110201.

It can be written as a sum of positive squares in 2 ways, for example, as 10139483025 + 61638201 = 100695^2 + 7851^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10201121199 and 10201121208.

It is not an unprimeable number, because it can be changed into a prime (10201121221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288136 + ... + 321596.

Almost surely, 2^10201121226 is an apocalyptic number.

10201121226 is an abundant number, since it is smaller than the sum of its proper divisors (11903273658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10201121226 is a wasteful number, since it uses less digits than its factorization.

10201121226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50406 (or 50403 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 10201121226 its reverse (62212110201), we get a palindrome (72413231427).

The spelling of 10201121226 in words is "ten billion, two hundred one million, one hundred twenty-one thousand, two hundred twenty-six".