1222140455 has 32 divisors (see below), whose sum is σ = 1585785600. Its totient is φ = 900813312.

The previous prime is 1222140449. The next prime is 1222140487. The reversal of 1222140455 is 5540412221.

It is a cyclic number.

It is not a de Polignac number, because 1222140455 - 2¹² = 1222136359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1900364 + ... + 1901006.

It is an arithmetic number, because the mean of its divisors is an integer number (49555800).

Almost surely, 2^1222140455 is an apocalyptic number.

1222140455 is a deficient number, since it is larger than the sum of its proper divisors (363645145).

1222140455 is a wasteful number, since it uses less digits than its factorization.

1222140455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1222140455 is about 34959.1254896343. The cubic root of 1222140455 is about 1069.1542666330.

Adding to 1222140455 its reverse (5540412221), we get a palindrome (6762552676).

The spelling of 1222140455 in words is "one billion, two hundred twenty-two million, one hundred forty thousand, four hundred fifty-five".