122111222153 has 2 divisors, whose sum is σ = 122111222154. Its totient is φ = 122111222152.

The previous prime is 122111222089. The next prime is 122111222231. The reversal of 122111222153 is 351222111221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110630742544 + 11480479609 = 332612^2 + 107147^2 .

It is a cyclic number.

It is not a de Polignac number, because 122111222153 - 2⁶ = 122111222089 is a prime.

It is a super-2 number, since 2×122111222153² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122111227153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055611076 + 61055611077.

It is an arithmetic number, because the mean of its divisors is an integer number (61055611077).

Almost surely, 2^122111222153 is an apocalyptic number.

It is an amenable number.

122111222153 is a deficient number, since it is larger than the sum of its proper divisors (1).

122111222153 is an equidigital number, since it uses as much as digits as its factorization.

122111222153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 23.

Adding to 122111222153 its reverse (351222111221), we get a palindrome (473333333374).

The spelling of 122111222153 in words is "one hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, one hundred fifty-three".