222152629 has 2 divisors, whose sum is σ = 222152630. Its totient is φ = 222152628.

The previous prime is 222152621. The next prime is 222152647. The reversal of 222152629 is 926251222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193154404 + 28998225 = 13898^2 + 5385^2 .

It is a cyclic number.

It is not a de Polignac number, because 222152629 - 2³ = 222152621 is a prime.

It is a super-2 number, since 2×222152629² = 98703581143223282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222152629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222152621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111076314 + 111076315.

It is an arithmetic number, because the mean of its divisors is an integer number (111076315).

Almost surely, 2^222152629 is an apocalyptic number.

It is an amenable number.

222152629 is a deficient number, since it is larger than the sum of its proper divisors (1).

222152629 is an equidigital number, since it uses as much as digits as its factorization.

222152629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 222152629 is about 14904.7854395828. The cubic root of 222152629 is about 605.6436280371.

The spelling of 222152629 in words is "two hundred twenty-two million, one hundred fifty-two thousand, six hundred twenty-nine".