102221040220 has 48 divisors (see below), whose sum is σ = 231298784640. Its totient is φ = 37723239936.

The previous prime is 102221040211. The next prime is 102221040247. The reversal of 102221040220 is 22040122201.

It is a junction number, because it is equal to n+sod(n) for n = 102221040194 and 102221040203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394621 + ... + 600139.

It is an arithmetic number, because the mean of its divisors is an integer number (4818724680).

Almost surely, 2^102221040220 is an apocalyptic number.

102221040220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102221040220 is an abundant number, since it is smaller than the sum of its proper divisors (129077744420).

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

102221040220 is a wasteful number, since it uses less digits than its factorization.

102221040220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207454 (or 207452 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 102221040220 its reverse (22040122201), we get a palindrome (124261162421).

The spelling of 102221040220 in words is "one hundred two billion, two hundred twenty-one million, forty thousand, two hundred twenty".