1201011200010 has 192 divisors, whose sum is σ = 3303771045120. Its totient is φ = 301866808320.

The previous prime is 1201011199939. The next prime is 1201011200047. The reversal of 1201011200010 is 100021101021.

It is a happy number.

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 = 1201011199965 and 1201011200001.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 395458212 + ... + 395461248.

It is an arithmetic number, because the mean of its divisors is an integer number (17207140860).

Almost surely, 2^{1201011200010} is an apocalyptic number.

1201011200010 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 1201011200010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1651885522560).

1201011200010 is an abundant number, since it is smaller than the sum of its proper divisors (2102759845110).

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

1201011200010 is a wasteful number, since it uses less digits than its factorization.

1201011200010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173 (or 4170 counting only the distinct ones).

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

Adding to 1201011200010 its reverse (100021101021), we get a palindrome (1301032301031).

The spelling of 1201011200010 in words is "one trillion, two hundred one billion, eleven million, two hundred thousand, ten".