102003001220 has 48 divisors (see below), whose sum is σ = 214984784448. Its totient is φ = 40653191040.

The previous prime is 102003001213. The next prime is 102003001229. The reversal of 102003001220 is 22100300201.

It is a happy number.

It is a super-2 number, since 2×102003001220² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102003001229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6404507 + ... + 6420413.

It is an arithmetic number, because the mean of its divisors is an integer number (4478849676).

Almost surely, 2^102003001220 is an apocalyptic number.

102003001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102003001220 is an abundant number, since it is smaller than the sum of its proper divisors (112981783228).

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

102003001220 is a wasteful number, since it uses less digits than its factorization.

102003001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17060 (or 17058 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 102003001220 its reverse (22100300201), we get a palindrome (124103301421).

The spelling of 102003001220 in words is "one hundred two billion, three million, one thousand, two hundred twenty".