20201121011200 has 120 divisors (see below), whose sum is σ = 50492778208488. Its totient is φ = 8008939438080.

The previous prime is 20201121011171. The next prime is 20201121011233. The reversal of 20201121011200 is 211012110202.

It is a super-2 number, since 2×20201121011200² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 5536842 + ... + 8429641.

Almost surely, 2^{20201121011200} is an apocalyptic number.

20201121011200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201121011200 is an abundant number, since it is smaller than the sum of its proper divisors (30291657197288).

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

20201121011200 is a wasteful number, since it uses less digits than its factorization.

20201121011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13966624 (or 13966603 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20201121011200 its reverse (211012110202), we get a palindrome (20412133121402).

The spelling of 20201121011200 in words is "twenty trillion, two hundred one billion, one hundred twenty-one million, eleven thousand, two hundred".