1227241634685 has 32 divisors (see below), whose sum is σ = 2142222888960. Its totient is φ = 594990580800.

The previous prime is 1227241634651. The next prime is 1227241634687. The reversal of 1227241634685 is 5864361427221.

It is not a de Polignac number, because 1227241634685 - 2⁷ = 1227241634557 is a prime.

It is a super-2 number, since 2×1227241634685² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227241634687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2650000 + ... + 3078470.

It is an arithmetic number, because the mean of its divisors is an integer number (66944465280).

Almost surely, 2^{1227241634685} is an apocalyptic number.

1227241634685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1227241634685 is a deficient number, since it is larger than the sum of its proper divisors (914981254275).

1227241634685 is a wasteful number, since it uses less digits than its factorization.

1227241634685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445849.

The product of its digits is 3870720, while the sum is 51.

The spelling of 1227241634685 in words is "one trillion, two hundred twenty-seven billion, two hundred forty-one million, six hundred thirty-four thousand, six hundred eighty-five".