1214222651 has 8 divisors (see below), whose sum is σ = 1231689744. Its totient is φ = 1196778240.

The previous prime is 1214222621. The next prime is 1214222677. The reversal of 1214222651 is 1562224121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1214222651 - 2⁶ = 1214222587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214222651.

It is not an unprimeable number, because it can be changed into a prime (1214222621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122771 + ... + 132291.

It is an arithmetic number, because the mean of its divisors is an integer number (153961218).

Almost surely, 2^1214222651 is an apocalyptic number.

1214222651 is a deficient number, since it is larger than the sum of its proper divisors (17467093).

1214222651 is an equidigital number, since it uses as much as digits as its factorization.

1214222651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11341.

The product of its digits is 1920, while the sum is 26.

The square root of 1214222651 is about 34845.6977401802. The cubic root of 1214222651 is about 1066.8403751060.

Adding to 1214222651 its reverse (1562224121), we get a palindrome (2776446772).

The spelling of 1214222651 in words is "one billion, two hundred fourteen million, two hundred twenty-two thousand, six hundred fifty-one".