222121022220029 has 2 divisors, whose sum is σ = 222121022220030. Its totient is φ = 222121022220028.

The previous prime is 222121022219981. The next prime is 222121022220047. The reversal of 222121022220029 is 920022220121222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215623468279129 + 6497553940900 = 14684123^2 + 2549030^2 .

It is a cyclic number.

It is not a de Polignac number, because 222121022220029 - 2⁸ = 222121022219773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222121022219983 and 222121022220010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222121022220529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060511110014 + 111060511110015.

It is an arithmetic number, because the mean of its divisors is an integer number (111060511110015).

Almost surely, 2^{222121022220029} is an apocalyptic number.

It is an amenable number.

222121022220029 is a deficient number, since it is larger than the sum of its proper divisors (1).

222121022220029 is an equidigital number, since it uses as much as digits as its factorization.

222121022220029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 222121022220029 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, twenty-two million, two hundred twenty thousand, twenty-nine".