221422115704452 has 192 divisors, whose sum is σ = 614031235743744. Its totient is φ = 61451315988480.

The previous prime is 221422115704441. The next prime is 221422115704463. The reversal of 221422115704452 is 254407511224122.

It is an interprime number because it is at equal distance from previous prime (221422115704441) and next prime (221422115704463).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4606468 + ... + 21542139.

It is an arithmetic number, because the mean of its divisors is an integer number (3198079352832).

Almost surely, 2^{221422115704452} is an apocalyptic number.

It is an amenable number.

221422115704452 is an abundant number, since it is smaller than the sum of its proper divisors (392609120039292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221422115704452 is a wasteful number, since it uses less digits than its factorization.

221422115704452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26148778 (or 26148776 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 42.

Adding to 221422115704452 its reverse (254407511224122), we get a palindrome (475829626928574).

The spelling of 221422115704452 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, one hundred fifteen million, seven hundred four thousand, four hundred fifty-two".