102212332020 has 72 divisors (see below), whose sum is σ = 318423664104. Its totient is φ = 26519954688.

The previous prime is 102212332009. The next prime is 102212332021. The reversal of 102212332020 is 20233212201.

102212332020 is a `hidden beast` number, since 10 + 221 + 233 + 202 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 27062882064 + 75149449956 = 164508^2 + 274134^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102212331984 and 102212332002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212332021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7666939 + ... + 7680258.

Almost surely, 2^102212332020 is an apocalyptic number.

102212332020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102212332020 is an abundant number, since it is smaller than the sum of its proper divisors (216211332084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102212332020 is a wasteful number, since it uses less digits than its factorization.

102212332020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15347249 (or 15347244 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 102212332020 its reverse (20233212201), we get a palindrome (122445544221).

The spelling of 102212332020 in words is "one hundred two billion, two hundred twelve million, three hundred thirty-two thousand, twenty".