1222554006 has 128 divisors (see below), whose sum is σ = 2962759680. Its totient is φ = 372556800.

The previous prime is 1222553977. The next prime is 1222554043. The reversal of 1222554006 is 6004552221.

1222554006 is a `hidden beast` number, since 1 + 2 + 2 + 255 + 400 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4350586 + ... + 4350866.

It is an arithmetic number, because the mean of its divisors is an integer number (23146560).

Almost surely, 2^1222554006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222554006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1481379840).

1222554006 is an abundant number, since it is smaller than the sum of its proper divisors (1740205674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222554006 is a wasteful number, since it uses less digits than its factorization.

1222554006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1222554006 is about 34965.0397683172. The cubic root of 1222554006 is about 1069.2748474146.

The spelling of 1222554006 in words is "one billion, two hundred twenty-two million, five hundred fifty-four thousand, six".