1021120201200 has 120 divisors (see below), whose sum is σ = 3568351003776. Its totient is φ = 247544288000.

The previous prime is 1021120201159. The next prime is 1021120201229. The reversal of 1021120201200 is 21020211201.

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

It is a super-3 number, since 3×1021120201200³ (a number of 37 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38665596 + ... + 38691995.

Almost surely, 2^{1021120201200} is an apocalyptic number.

1021120201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021120201200 is an abundant number, since it is smaller than the sum of its proper divisors (2547230802576).

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

1021120201200 is a wasteful number, since it uses less digits than its factorization.

1021120201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77357623 (or 77357612 counting only the distinct ones).

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

Adding to 1021120201200 its reverse (21020211201), we get a palindrome (1042140412401).

The spelling of 1021120201200 in words is "one trillion, twenty-one billion, one hundred twenty million, two hundred one thousand, two hundred".