31220222053 has 2 divisors, whose sum is σ = 31220222054. Its totient is φ = 31220222052.

The previous prime is 31220222041. The next prime is 31220222083. The reversal of 31220222053 is 35022202213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27169917889 + 4050304164 = 164833^2 + 63642^2 .

It is a cyclic number.

It is not a de Polignac number, because 31220222053 - 2¹³ = 31220213861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31220222083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15610111026 + 15610111027.

It is an arithmetic number, because the mean of its divisors is an integer number (15610111027).

Almost surely, 2^31220222053 is an apocalyptic number.

It is an amenable number.

31220222053 is a deficient number, since it is larger than the sum of its proper divisors (1).

31220222053 is an equidigital number, since it uses as much as digits as its factorization.

31220222053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 31220222053 its reverse (35022202213), we get a palindrome (66242424266).

The spelling of 31220222053 in words is "thirty-one billion, two hundred twenty million, two hundred twenty-two thousand, fifty-three".