102200021122 has 8 divisors (see below), whose sum is σ = 157039056972. Its totient is φ = 49853668800.

The previous prime is 102200021003. The next prime is 102200021129. The reversal of 102200021122 is 221120002201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 100013430001 + 2186591121 = 316249^2 + 46761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×102200021122² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102200021129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623170779 + ... + 623170942.

Almost surely, 2^102200021122 is an apocalyptic number.

102200021122 is a deficient number, since it is larger than the sum of its proper divisors (54839035850).

102200021122 is a wasteful number, since it uses less digits than its factorization.

102200021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246341764.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102200021122 its reverse (221120002201), we get a palindrome (323320023323).

The spelling of 102200021122 in words is "one hundred two billion, two hundred million, twenty-one thousand, one hundred twenty-two".