102344211220 has 24 divisors (see below), whose sum is σ = 214956441000. Its totient is φ = 40931284992.

The previous prime is 102344211187. The next prime is 102344211241. The reversal of 102344211220 is 22112443201.

It can be written as a sum of positive squares in 4 ways, for example, as 31239855504 + 71104355716 = 176748^2 + 266654^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102344211191 and 102344211200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267765 + ... + 525724.

It is an arithmetic number, because the mean of its divisors is an integer number (8956518375).

Almost surely, 2^102344211220 is an apocalyptic number.

102344211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102344211220 is an abundant number, since it is smaller than the sum of its proper divisors (112612229780).

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

102344211220 is a wasteful number, since it uses less digits than its factorization.

102344211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799947 (or 799945 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 102344211220 its reverse (22112443201), we get a palindrome (124456654421).

The spelling of 102344211220 in words is "one hundred two billion, three hundred forty-four million, two hundred eleven thousand, two hundred twenty".