102021223340 has 12 divisors (see below), whose sum is σ = 214244569056. Its totient is φ = 40808489328.

The previous prime is 102021223309. The next prime is 102021223393. The reversal of 102021223340 is 43322120201.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5101061167 = 102021223340 / (1 + 0 + 2 + 0 + 2 + 1 + 2 + 2 + 3 + 3 + 4 + 0).

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, 2550530564 + ... + 2550530603.

It is an arithmetic number, because the mean of its divisors is an integer number (17853714088).

Almost surely, 2^102021223340 is an apocalyptic number.

102021223340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021223340 is an abundant number, since it is smaller than the sum of its proper divisors (112223345716).

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

102021223340 is a wasteful number, since it uses less digits than its factorization.

102021223340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101061176 (or 5101061174 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 102021223340 its reverse (43322120201), we get a palindrome (145343343541).

The spelling of 102021223340 in words is "one hundred two billion, twenty-one million, two hundred twenty-three thousand, three hundred forty".