220212136 has 8 divisors (see below), whose sum is σ = 412897770. Its totient is φ = 110106064.

The previous prime is 220212121. The next prime is 220212151. The reversal of 220212136 is 631212022.

It is an interprime number because it is at equal distance from previous prime (220212121) and next prime (220212151).

It can be written as a sum of positive squares in only one way, i.e., 154504900 + 65707236 = 12430^2 + 8106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13763251 + ... + 13763266.

Almost surely, 2^220212136 is an apocalyptic number.

It is an amenable number.

220212136 is a deficient number, since it is larger than the sum of its proper divisors (192685634).

220212136 is a wasteful number, since it uses less digits than its factorization.

220212136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27526523 (or 27526519 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 220212136 is about 14839.5463542522. The cubic root of 220212136 is about 603.8750454202.

Adding to 220212136 its reverse (631212022), we get a palindrome (851424158).

The spelling of 220212136 in words is "two hundred twenty million, two hundred twelve thousand, one hundred thirty-six".