1271236712226 has 16 divisors (see below), whose sum is σ = 2738048303424. Its totient is φ = 391149757584.

The previous prime is 1271236712209. The next prime is 1271236712231. The reversal of 1271236712226 is 6222176321721.

It is a super-2 number, since 2×1271236712226² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8148953206 + ... + 8148953361.

It is an arithmetic number, because the mean of its divisors is an integer number (171128018964).

Almost surely, 2^{1271236712226} is an apocalyptic number.

1271236712226 is an abundant number, since it is smaller than the sum of its proper divisors (1466811591198).

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

1271236712226 is a wasteful number, since it uses less digits than its factorization.

1271236712226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16297906585.

The product of its digits is 169344, while the sum is 42.

The spelling of 1271236712226 in words is "one trillion, two hundred seventy-one billion, two hundred thirty-six million, seven hundred twelve thousand, two hundred twenty-six".