102020001200 has 60 divisors (see below), whose sum is σ = 263957147328. Its totient is φ = 37668921600.

The previous prime is 102020001169. The next prime is 102020001227. The reversal of 102020001200 is 2100020201.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9804416 + ... + 9814815.

Almost surely, 2^102020001200 is an apocalyptic number.

102020001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020001200 is an abundant number, since it is smaller than the sum of its proper divisors (161937146128).

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

102020001200 is a wasteful number, since it uses less digits than its factorization.

102020001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19619262 (or 19619251 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 102020001200 its reverse (2100020201), we get a palindrome (104120021401).

It can be divided in two parts, 102020001 and 200, that added together give a palindrome (102020201).

The spelling of 102020001200 in words is "one hundred two billion, twenty million, one thousand, two hundred".