1200222031 has 16 divisors (see below), whose sum is σ = 1240038688. Its totient is φ = 1161216000.

The previous prime is 1200222013. The next prime is 1200222059. The reversal of 1200222031 is 1302220021.

It is a 14-Lehmer number, since φ(1200222031) divides (1200222031-1)¹⁴.

It is a cyclic number.

It is not a de Polignac number, because 1200222031 - 2¹¹ = 1200219983 is a prime.

It is a super-2 number, since 2×1200222031² = 2881065847395529922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200222061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1141456 + ... + 1142506.

It is an arithmetic number, because the mean of its divisors is an integer number (77502418).

Almost surely, 2^1200222031 is an apocalyptic number.

1200222031 is a deficient number, since it is larger than the sum of its proper divisors (39816657).

1200222031 is a wasteful number, since it uses less digits than its factorization.

1200222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1200222031 is about 34644.2207445917. The cubic root of 1200222031 is about 1062.7241049033.

Adding to 1200222031 its reverse (1302220021), we get a palindrome (2502442052).

The spelling of 1200222031 in words is "one billion, two hundred million, two hundred twenty-two thousand, thirty-one".