1226013219 has 16 divisors (see below), whose sum is σ = 1817840640. Its totient is φ = 816656040.

The previous prime is 1226013211. The next prime is 1226013233. The reversal of 1226013219 is 9123106221.

1226013219 is a `hidden beast` number, since 1 + 22 + 601 + 32 + 1 + 9 = 666.

It is not a de Polignac number, because 1226013219 - 2³ = 1226013211 is a prime.

It is a super-2 number, since 2×1226013219² = 3006216826325483922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1226013192 and 1226013201.

It is not an unprimeable number, because it can be changed into a prime (1226013211) 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, 14794 + ... + 51680.

It is an arithmetic number, because the mean of its divisors is an integer number (113615040).

Almost surely, 2^1226013219 is an apocalyptic number.

1226013219 is a deficient number, since it is larger than the sum of its proper divisors (591827421).

1226013219 is a wasteful number, since it uses less digits than its factorization.

1226013219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38127 (or 38121 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1226013219 is about 35014.4715653400. The cubic root of 1226013219 is about 1070.2824010769.

The spelling of 1226013219 in words is "one billion, two hundred twenty-six million, thirteen thousand, two hundred nineteen".