102121110202 has 8 divisors (see below), whose sum is σ = 153304312500. Its totient is φ = 51019672704.

The previous prime is 102121110151. The next prime is 102121110251. The reversal of 102121110202 is 202011121201.

It can be written as a sum of positive squares in 2 ways, for example, as 98835413161 + 3285697041 = 314381^2 + 57321^2 .

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

It is a super-2 number, since 2×102121110202² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20438077 + ... + 20443072.

Almost surely, 2^102121110202 is an apocalyptic number.

102121110202 is a deficient number, since it is larger than the sum of its proper divisors (51183202298).

102121110202 is a wasteful number, since it uses less digits than its factorization.

102121110202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40882400.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102121110202 its reverse (202011121201), we get a palindrome (304132231403).

The spelling of 102121110202 in words is "one hundred two billion, one hundred twenty-one million, one hundred ten thousand, two hundred two".