31200122201 has 8 divisors (see below), whose sum is σ = 31709744904. Its totient is φ = 30694435200.

The previous prime is 31200122197. The next prime is 31200122237. The reversal of 31200122201 is 10222100213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17552275225 + 13647846976 = 132485^2 + 116824^2 .

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 31200122201 - 2² = 31200122197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31200121201) 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, 967940 + ... + 999653.

It is an arithmetic number, because the mean of its divisors is an integer number (3963718113).

Almost surely, 2^31200122201 is an apocalyptic number.

It is an amenable number.

31200122201 is a deficient number, since it is larger than the sum of its proper divisors (509622703).

31200122201 is a wasteful number, since it uses less digits than its factorization.

31200122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967851.

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

Adding to 31200122201 its reverse (10222100213), we get a palindrome (41422222414).

It can be divided in two parts, 3120012 and 2201, that added together give a palindrome (3122213).

The spelling of 31200122201 in words is "thirty-one billion, two hundred million, one hundred twenty-two thousand, two hundred one".