1214226551 has 2 divisors, whose sum is σ = 1214226552. Its totient is φ = 1214226550.

The previous prime is 1214226493. The next prime is 1214226617. The reversal of 1214226551 is 1556224121.

It is a weak prime.

It is an emirp because it is prime and its reverse (1556224121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1214226551 - 2²² = 1210032247 is a prime.

It is a super-2 number, since 2×1214226551² = 2948692234306711202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214226851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607113275 + 607113276.

It is an arithmetic number, because the mean of its divisors is an integer number (607113276).

Almost surely, 2^1214226551 is an apocalyptic number.

1214226551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214226551 is an equidigital number, since it uses as much as digits as its factorization.

1214226551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 29.

The square root of 1214226551 is about 34845.7537011327. The cubic root of 1214226551 is about 1066.8415173109.

The spelling of 1214226551 in words is "one billion, two hundred fourteen million, two hundred twenty-six thousand, five hundred fifty-one".