1321022222153 has 2 divisors, whose sum is σ = 1321022222154. Its totient is φ = 1321022222152.

The previous prime is 1321022222081. The next prime is 1321022222207. The reversal of 1321022222153 is 3512222201231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1310081689744 + 10940532409 = 1144588^2 + 104597^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321022222153 - 2¹² = 1321022218057 is a prime.

It is a super-2 number, since 2×1321022222153² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1321022222053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660511111076 + 660511111077.

It is an arithmetic number, because the mean of its divisors is an integer number (660511111077).

Almost surely, 2^{1321022222153} is an apocalyptic number.

It is an amenable number.

1321022222153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321022222153 is an equidigital number, since it uses as much as digits as its factorization.

1321022222153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1321022222153 its reverse (3512222201231), we get a palindrome (4833244423384).

The spelling of 1321022222153 in words is "one trillion, three hundred twenty-one billion, twenty-two million, two hundred twenty-two thousand, one hundred fifty-three".