1020201001200 has 180 divisors, whose sum is σ = 3748638786048. Its totient is φ = 256050432000.

The previous prime is 1020201001189. The next prime is 1020201001271. The reversal of 1020201001200 is 21001020201.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8273776 + ... + 8396175.

Almost surely, 2^{1020201001200} is an apocalyptic number.

1020201001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020201001200 is an abundant number, since it is smaller than the sum of its proper divisors (2728437784848).

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

1020201001200 is a wasteful number, since it uses less digits than its factorization.

1020201001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16669992 (or 16669978 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1020201001200 its reverse (21001020201), we get a palindrome (1041202021401).

The spelling of 1020201001200 in words is "one trillion, twenty billion, two hundred one million, one thousand, two hundred".