102202102540450 has 48 divisors (see below), whose sum is σ = 207673188690240. Its totient is φ = 37111384520000.

The previous prime is 102202102540403. The next prime is 102202102540457. The reversal of 102202102540450 is 54045201202201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102202102540457) 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, 132155110 + ... + 132926209.

It is an arithmetic number, because the mean of its divisors is an integer number (4326524764380).

Almost surely, 2^{102202102540450} is an apocalyptic number.

102202102540450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102202102540450 is an abundant number, since it is smaller than the sum of its proper divisors (105471086149790).

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

102202102540450 is a wasteful number, since it uses less digits than its factorization.

102202102540450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265082043 (or 265082038 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 102202102540450 its reverse (54045201202201), we get a palindrome (156247303742651).

The spelling of 102202102540450 in words is "one hundred two trillion, two hundred two billion, one hundred two million, five hundred forty thousand, four hundred fifty".