1121000201010 has 96 divisors (see below), whose sum is σ = 2995876598832. Its totient is φ = 290610892800.

The previous prime is 1121000200987. The next prime is 1121000201059. The reversal of 1121000201010 is 101020001211.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 194330207241 + 926669993769 = 440829^2 + 962637^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1121000200983 and 1121000201001.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3859182 + ... + 4139478.

Almost surely, 2^{1121000201010} is an apocalyptic number.

1121000201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121000201010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1497938299416).

1121000201010 is an abundant number, since it is smaller than the sum of its proper divisors (1874876397822).

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

1121000201010 is a wasteful number, since it uses less digits than its factorization.

1121000201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281548 (or 281545 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1121000201010 its reverse (101020001211), we get a palindrome (1222020202221).

The spelling of 1121000201010 in words is "one trillion, one hundred twenty-one billion, two hundred one thousand, ten".