220021102 has 16 divisors (see below), whose sum is σ = 397031040. Its totient is φ = 89331768.

The previous prime is 220021079. The next prime is 220021103. The reversal of 220021102 is 201120022.

220021102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220021103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413308 + ... + 413839.

It is an arithmetic number, because the mean of its divisors is an integer number (24814440).

Almost surely, 2^220021102 is an apocalyptic number.

220021102 is a deficient number, since it is larger than the sum of its proper divisors (177009938).

220021102 is a wasteful number, since it uses less digits than its factorization.

220021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827175.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 220021102 is about 14833.1083054092. The cubic root of 220021102 is about 603.7003743930.

Adding to 220021102 its reverse (201120022), we get a palindrome (421141124).

It can be divided in two parts, 22002 and 1102, that added together give a square (23104 = 152²).

The spelling of 220021102 in words is "two hundred twenty million, twenty-one thousand, one hundred two".