221210222212183 has 2 divisors, whose sum is σ = 221210222212184. Its totient is φ = 221210222212182.

The previous prime is 221210222212169. The next prime is 221210222212193. The reversal of 221210222212183 is 381212222012122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221210222212183 is a prime.

It is a super-2 number, since 2×221210222212183² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221210222212163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110605111106091 + 110605111106092.

It is an arithmetic number, because the mean of its divisors is an integer number (110605111106092).

Almost surely, 2^{221210222212183} is an apocalyptic number.

221210222212183 is a deficient number, since it is larger than the sum of its proper divisors (1).

221210222212183 is an equidigital number, since it uses as much as digits as its factorization.

221210222212183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 31.

The spelling of 221210222212183 in words is "two hundred twenty-one trillion, two hundred ten billion, two hundred twenty-two million, two hundred twelve thousand, one hundred eighty-three".