102221135156 has 24 divisors (see below), whose sum is σ = 206052059136. Its totient is φ = 43464103200.

The previous prime is 102221135153. The next prime is 102221135197. The reversal of 102221135156 is 651531122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221135153) 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, 14369495 + ... + 14376606.

It is an arithmetic number, because the mean of its divisors is an integer number (8585502464).

Almost surely, 2^102221135156 is an apocalyptic number.

It is an amenable number.

102221135156 is an abundant number, since it is smaller than the sum of its proper divisors (103830923980).

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

102221135156 is a wasteful number, since it uses less digits than its factorization.

102221135156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28746239 (or 28746237 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 102221135156 its reverse (651531122201), we get a palindrome (753752257357).

The spelling of 102221135156 in words is "one hundred two billion, two hundred twenty-one million, one hundred thirty-five thousand, one hundred fifty-six".