1200221286 has 16 divisors (see below), whose sum is σ = 2618664768. Its totient is φ = 363703400.

The previous prime is 1200221147. The next prime is 1200221287. The reversal of 1200221286 is 6821220021.

It is a super-2 number, since 2×1200221286² = 2881062270734987592, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200221287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9092520 + ... + 9092651.

It is an arithmetic number, because the mean of its divisors is an integer number (163666548).

Almost surely, 2^1200221286 is an apocalyptic number.

1200221286 is an abundant number, since it is smaller than the sum of its proper divisors (1418443482).

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

1200221286 is a wasteful number, since it uses less digits than its factorization.

1200221286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18185187.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1200221286 is about 34644.2099924360. The cubic root of 1200221286 is about 1062.7238850191.

The spelling of 1200221286 in words is "one billion, two hundred million, two hundred twenty-one thousand, two hundred eighty-six".