1211220414 has 12 divisors (see below), whose sum is σ = 2624310936. Its totient is φ = 403740132.

The previous prime is 1211220397. The next prime is 1211220427. The reversal of 1211220414 is 4140221121.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 67290023 = 1211220414 / (1 + 2 + 1 + 1 + 2 + 2 + 0 + 4 + 1 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33644994 + ... + 33645029.

It is an arithmetic number, because the mean of its divisors is an integer number (218692578).

Almost surely, 2^1211220414 is an apocalyptic number.

1211220414 is an abundant number, since it is smaller than the sum of its proper divisors (1413090522).

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

1211220414 is a wasteful number, since it uses less digits than its factorization.

1211220414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67290031 (or 67290028 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1211220414 is about 34802.5920586384. The cubic root of 1211220414 is about 1065.9603742074.

Adding to 1211220414 its reverse (4140221121), we get a palindrome (5351441535).

The spelling of 1211220414 in words is "one billion, two hundred eleven million, two hundred twenty thousand, four hundred fourteen".