1201222031 has 2 divisors, whose sum is σ = 1201222032. Its totient is φ = 1201222030.

The previous prime is 1201222027. The next prime is 1201222037. The reversal of 1201222031 is 1302221021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201222031 - 2² = 1201222027 is a prime.

It is a super-2 number, since 2×1201222031² = 2885868735519529922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201221997 and 1201222015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201222037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600611015 + 600611016.

It is an arithmetic number, because the mean of its divisors is an integer number (600611016).

Almost surely, 2^1201222031 is an apocalyptic number.

1201222031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201222031 is an equidigital number, since it uses as much as digits as its factorization.

1201222031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1201222031 is about 34658.6501612512. The cubic root of 1201222031 is about 1063.0191695017.

Adding to 1201222031 its reverse (1302221021), we get a palindrome (2503443052).

It can be divided in two parts, 12012 and 22031, that added together give a palindrome (34043).

The spelling of 1201222031 in words is "one billion, two hundred one million, two hundred twenty-two thousand, thirty-one".