220022221101251 has 2 divisors, whose sum is σ = 220022221101252. Its totient is φ = 220022221101250.

The previous prime is 220022221101233. The next prime is 220022221101259. The reversal of 220022221101251 is 152101122220022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220022221101251 - 2⁶ = 220022221101187 is a prime.

It is not a weakly prime, because it can be changed into another prime (220022221101259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110011110550625 + 110011110550626.

It is an arithmetic number, because the mean of its divisors is an integer number (110011110550626).

Almost surely, 2^{220022221101251} is an apocalyptic number.

220022221101251 is a deficient number, since it is larger than the sum of its proper divisors (1).

220022221101251 is an equidigital number, since it uses as much as digits as its factorization.

220022221101251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 220022221101251 its reverse (152101122220022), we get a palindrome (372123343321273).

The spelling of 220022221101251 in words is "two hundred twenty trillion, twenty-two billion, two hundred twenty-one million, one hundred one thousand, two hundred fifty-one".