1226260211 has 16 divisors (see below), whose sum is σ = 1383257088. Its totient is φ = 1076973600.

The previous prime is 1226260193. The next prime is 1226260213. The reversal of 1226260211 is 1120626221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1226260211 - 2²² = 1222065907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1226260213) 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, 219920 + ... + 225426.

It is an arithmetic number, because the mean of its divisors is an integer number (86453568).

Almost surely, 2^1226260211 is an apocalyptic number.

1226260211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1226260211 is a deficient number, since it is larger than the sum of its proper divisors (156996877).

1226260211 is a wasteful number, since it uses less digits than its factorization.

1226260211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6202.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1226260211 is about 35017.9983865440. The cubic root of 1226260211 is about 1070.3542691005.

Adding to 1226260211 its reverse (1120626221), we get a palindrome (2346886432).

The spelling of 1226260211 in words is "one billion, two hundred twenty-six million, two hundred sixty thousand, two hundred eleven".