1112021101000 has 64 divisors (see below), whose sum is σ = 2610338730480. Its totient is φ = 443405132800.

The previous prime is 1112021100959. The next prime is 1112021101019. The reversal of 1112021101000 is 1011202111.

It can be written as a sum of positive squares in 8 ways, for example, as 195662906244 + 916358194756 = 442338^2 + 957266^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1436977 + ... + 2070976.

Almost surely, 2^{1112021101000} is an apocalyptic number.

1112021101000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112021101000 is an abundant number, since it is smaller than the sum of its proper divisors (1498317629480).

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

1112021101000 is a wasteful number, since it uses less digits than its factorization.

1112021101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508291 (or 3508277 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1112021101000 its reverse (1011202111), we get a palindrome (1113032303111).

The spelling of 1112021101000 in words is "one trillion, one hundred twelve billion, twenty-one million, one hundred one thousand".