1222986551 has 2 divisors, whose sum is σ = 1222986552. Its totient is φ = 1222986550.

The previous prime is 1222986529. The next prime is 1222986559. The reversal of 1222986551 is 1556892221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222986551 - 2¹⁸ = 1222724407 is a prime.

It is a super-2 number, since 2×1222986551² = 2991392207853751202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222986499 and 1222986508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222986559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611493275 + 611493276.

It is an arithmetic number, because the mean of its divisors is an integer number (611493276).

Almost surely, 2^1222986551 is an apocalyptic number.

1222986551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222986551 is an equidigital number, since it uses as much as digits as its factorization.

1222986551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 41.

The square root of 1222986551 is about 34971.2246139594. The cubic root of 1222986551 is about 1069.4009372645.

The spelling of 1222986551 in words is "one billion, two hundred twenty-two million, nine hundred eighty-six thousand, five hundred fifty-one".