1252267771051 has 16 divisors (see below), whose sum is σ = 1369262361600. Its totient is φ = 1135801481920.

The previous prime is 1252267771043. The next prime is 1252267771123. The reversal of 1252267771051 is 1501777622521.

It is a cyclic number.

It is not a de Polignac number, because 1252267771051 - 2³ = 1252267771043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1252267770992 and 1252267771010.

It is not an unprimeable number, because it can be changed into a prime (1252267751051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8500446 + ... + 8646508.

It is an arithmetic number, because the mean of its divisors is an integer number (85578897600).

Almost surely, 2^{1252267771051} is an apocalyptic number.

1252267771051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1252267771051 is a deficient number, since it is larger than the sum of its proper divisors (116994590549).

1252267771051 is a wasteful number, since it uses less digits than its factorization.

1252267771051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147866.

The product of its (nonzero) digits is 411600, while the sum is 46.

The spelling of 1252267771051 in words is "one trillion, two hundred fifty-two billion, two hundred sixty-seven million, seven hundred seventy-one thousand, fifty-one".