1051513201226 has 4 divisors (see below), whose sum is σ = 1577269801842. Its totient is φ = 525756600612.

The previous prime is 1051513201201. The next prime is 1051513201243. The reversal of 1051513201226 is 6221023151501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1013044263001 + 38468938225 = 1006501^2 + 196135^2 .

It is a super-2 number, since 2×1051513201226² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262878300305 + ... + 262878300308.

Almost surely, 2^{1051513201226} is an apocalyptic number.

1051513201226 is a deficient number, since it is larger than the sum of its proper divisors (525756600616).

1051513201226 is an equidigital number, since it uses as much as digits as its factorization.

1051513201226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525756600615.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 1051513201226 its reverse (6221023151501), we get a palindrome (7272536352727).

The spelling of 1051513201226 in words is "one trillion, fifty-one billion, five hundred thirteen million, two hundred one thousand, two hundred twenty-six".