1302221221231 has 16 divisors (see below), whose sum is σ = 1518827051520. Its totient is φ = 1093459217760.

The previous prime is 1302221221211. The next prime is 1302221221243. The reversal of 1302221221231 is 1321221222031.

It is not a de Polignac number, because 1302221221231 - 2⁵ = 1302221221199 is a prime.

It is a super-2 number, since 2×1302221221231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302221221201) 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, 8266441 + ... + 8422498.

It is an arithmetic number, because the mean of its divisors is an integer number (94926690720).

Almost surely, 2^{1302221221231} is an apocalyptic number.

1302221221231 is a deficient number, since it is larger than the sum of its proper divisors (216605830289).

1302221221231 is a wasteful number, since it uses less digits than its factorization.

1302221221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16689174.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1302221221231 its reverse (1321221222031), we get a palindrome (2623442443262).

The spelling of 1302221221231 in words is "one trillion, three hundred two billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred thirty-one".