220022001988 has 6 divisors (see below), whose sum is σ = 385038503486. Its totient is φ = 110011000992.

The previous prime is 220022001967. The next prime is 220022002009. The reversal of 220022001988 is 889100220022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220022001967) and next prime (220022002009).

It can be written as a sum of positive squares in only one way, i.e., 220015407364 + 6594624 = 469058^2 + 2568^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27502750245 + ... + 27502750252.

Almost surely, 2^220022001988 is an apocalyptic number.

It is an amenable number.

220022001988 is a deficient number, since it is larger than the sum of its proper divisors (165016501498).

220022001988 is a wasteful number, since it uses less digits than its factorization.

220022001988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55005500501 (or 55005500499 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The spelling of 220022001988 in words is "two hundred twenty billion, twenty-two million, one thousand, nine hundred eighty-eight".