111001201000 has 32 divisors (see below), whose sum is σ = 259742812680. Its totient is φ = 44400480000.

The previous prime is 111001200991. The next prime is 111001201001. The reversal of 111001201000 is 102100111.

It can be written as a sum of positive squares in 4 ways, for example, as 3953139876 + 107048061124 = 62874^2 + 327182^2 .

It is a super-4 number, since 4×111001201000⁴ (a number of 45 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (111001201001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55499601 + ... + 55501600.

Almost surely, 2^111001201000 is an apocalyptic number.

111001201000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111001201000 is an abundant number, since it is smaller than the sum of its proper divisors (148741611680).

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

111001201000 is a wasteful number, since it uses less digits than its factorization.

111001201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111001222 (or 111001208 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 111001201000 its reverse (102100111), we get a palindrome (111103301111).

The spelling of 111001201000 in words is "one hundred eleven billion, one million, two hundred one thousand".