1222487381 has 8 divisors (see below), whose sum is σ = 1226591424. Its totient is φ = 1218390880.

The previous prime is 1222487351. The next prime is 1222487401. The reversal of 1222487381 is 1837842221.

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 1222487381 - 2¹⁰ = 1222486357 is a prime.

It is a super-2 number, since 2×1222487381² = 2988950793408478322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222487311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584720 + ... + 586806.

It is an arithmetic number, because the mean of its divisors is an integer number (153323928).

Almost surely, 2^1222487381 is an apocalyptic number.

It is an amenable number.

1222487381 is a deficient number, since it is larger than the sum of its proper divisors (4104043).

1222487381 is a wasteful number, since it uses less digits than its factorization.

1222487381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771.

The product of its digits is 43008, while the sum is 38.

The square root of 1222487381 is about 34964.0870179675. The cubic root of 1222487381 is about 1069.2554231245.

The spelling of 1222487381 in words is "one billion, two hundred twenty-two million, four hundred eighty-seven thousand, three hundred eighty-one".