102020001121200 has 120 divisors (see below), whose sum is σ = 335636612843728. Its totient is φ = 26470054333440.

The previous prime is 102020001121189. The next prime is 102020001121301. The reversal of 102020001121200 is 2121100020201.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1148829487 + ... + 1148918286.

Almost surely, 2^{102020001121200} is an apocalyptic number.

102020001121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020001121200 is an abundant number, since it is smaller than the sum of its proper divisors (233616611722528).

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

102020001121200 is a wasteful number, since it uses less digits than its factorization.

102020001121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297747831 (or 2297747820 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102020001121200 its reverse (2121100020201), we get a palindrome (104141101141401).

It can be divided in two parts, 102020001 and 121200, that added together give a palindrome (102141201).

The spelling of 102020001121200 in words is "one hundred two trillion, twenty billion, one million, one hundred twenty-one thousand, two hundred".