222111021029 has 2 divisors, whose sum is σ = 222111021030. Its totient is φ = 222111021028.

The previous prime is 222111021007. The next prime is 222111021031. The reversal of 222111021029 is 920120111222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192284004004 + 29827017025 = 438502^2 + 172705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222111021029 is a prime.

Together with 222111021031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 222111020995 and 222111021013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222111021059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111055510514 + 111055510515.

It is an arithmetic number, because the mean of its divisors is an integer number (111055510515).

Almost surely, 2^222111021029 is an apocalyptic number.

It is an amenable number.

222111021029 is a deficient number, since it is larger than the sum of its proper divisors (1).

222111021029 is an equidigital number, since it uses as much as digits as its factorization.

222111021029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 222111021029 in words is "two hundred twenty-two billion, one hundred eleven million, twenty-one thousand, twenty-nine".