31220224042241 has 8 divisors (see below), whose sum is σ = 34191640412160. Its totient is φ = 28330216340112.

The previous prime is 31220224042229. The next prime is 31220224042243. The reversal of 31220224042241 is 14224042202213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31220224042241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31220224042243) 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, 20352166145 + ... + 20352167678.

It is an arithmetic number, because the mean of its divisors is an integer number (4273955051520).

Almost surely, 2^{31220224042241} is an apocalyptic number.

It is an amenable number.

31220224042241 is a deficient number, since it is larger than the sum of its proper divisors (2971416369919).

31220224042241 is a wasteful number, since it uses less digits than its factorization.

31220224042241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40704333895.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 31220224042241 its reverse (14224042202213), we get a palindrome (45444266244454).

The spelling of 31220224042241 in words is "thirty-one trillion, two hundred twenty billion, two hundred twenty-four million, forty-two thousand, two hundred forty-one".