1201222312031 has 16 divisors (see below), whose sum is σ = 1453945017600. Its totient is φ = 969444402048.

The previous prime is 1201222311953. The next prime is 1201222312033. The reversal of 1201222312031 is 1302132221021.

It is a cyclic number.

It is not a de Polignac number, because 1201222312031 - 2²⁶ = 1201155203167 is a prime.

It is a super-2 number, since 2×1201222312031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201222311994 and 1201222312012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201222312033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27683066 + ... + 27726423.

It is an arithmetic number, because the mean of its divisors is an integer number (90871563600).

Almost surely, 2^{1201222312031} is an apocalyptic number.

1201222312031 is a deficient number, since it is larger than the sum of its proper divisors (252722705569).

1201222312031 is a wasteful number, since it uses less digits than its factorization.

1201222312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55409678.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1201222312031 its reverse (1302132221021), we get a palindrome (2503354533052).

The spelling of 1201222312031 in words is "one trillion, two hundred one billion, two hundred twenty-two million, three hundred twelve thousand, thirty-one".