1226214136 has 16 divisors (see below), whose sum is σ = 2627601840. Its totient is φ = 525520320.

The previous prime is 1226214133. The next prime is 1226214149. The reversal of 1226214136 is 6314126221.

It is a super-2 number, since 2×1226214136² = 3007202214652452992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226214133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10948285 + ... + 10948396.

It is an arithmetic number, because the mean of its divisors is an integer number (164225115).

Almost surely, 2^1226214136 is an apocalyptic number.

It is an amenable number.

1226214136 is an abundant number, since it is smaller than the sum of its proper divisors (1401387704).

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

1226214136 is a wasteful number, since it uses less digits than its factorization.

1226214136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21896694 (or 21896690 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 1226214136 is about 35017.3405043844. The cubic root of 1226214136 is about 1070.3408632479.

The spelling of 1226214136 in words is "one billion, two hundred twenty-six million, two hundred fourteen thousand, one hundred thirty-six".