222202981 has 32 divisors (see below), whose sum is σ = 304754688. Its totient is φ = 156392640.

The previous prime is 222202979. The next prime is 222202987. The reversal of 222202981 is 189202222.

It is a cyclic number.

It is not a de Polignac number, because 222202981 - 2¹ = 222202979 is a prime.

It is a super-2 number, since 2×222202981² = 98748329530572722, which contains 22 as substring.

222202981 is a modest number, since divided by 2981 gives 2222 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44686 + ... + 49408.

It is an arithmetic number, because the mean of its divisors is an integer number (9523584).

Almost surely, 2^222202981 is an apocalyptic number.

It is an amenable number.

222202981 is a deficient number, since it is larger than the sum of its proper divisors (82551707).

222202981 is a wasteful number, since it uses less digits than its factorization.

222202981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 222202981 is about 14906.4744658152. The cubic root of 222202981 is about 605.6893819622.

It can be divided in two parts, 222 and 202981, that added together give a triangular number (203203 = T₆₃₇).

The spelling of 222202981 in words is "two hundred twenty-two million, two hundred two thousand, nine hundred eighty-one".