21222210100151 has 2 divisors, whose sum is σ = 21222210100152. Its totient is φ = 21222210100150.

The previous prime is 21222210100087. The next prime is 21222210100237. The reversal of 21222210100151 is 15100101222212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21222210100151 - 2⁶ = 21222210100087 is a prime.

It is a super-2 number, since 2×21222210100151² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21222210000151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611105050075 + 10611105050076.

It is an arithmetic number, because the mean of its divisors is an integer number (10611105050076).

Almost surely, 2^{21222210100151} is an apocalyptic number.

21222210100151 is a deficient number, since it is larger than the sum of its proper divisors (1).

21222210100151 is an equidigital number, since it uses as much as digits as its factorization.

21222210100151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 21222210100151 its reverse (15100101222212), we get a palindrome (36322311322363).

The spelling of 21222210100151 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred ten million, one hundred thousand, one hundred fifty-one".