1201210110000 has 150 divisors (see below), whose sum is σ = 4200805577540. Its totient is φ = 320322672000.

The previous prime is 1201210109999. The next prime is 1201210110059. The reversal of 1201210110000 is 110121021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (150).

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

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 6583390 + ... + 6763389.

Almost surely, 2^{1201210110000} is an apocalyptic number.

1201210110000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201210110000 is an abundant number, since it is smaller than the sum of its proper divisors (2999595467540).

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

1201210110000 is a wasteful number, since it uses less digits than its factorization.

1201210110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13346813 (or 13346789 counting only the distinct ones).

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

Adding to 1201210110000 its reverse (110121021), we get a palindrome (1201320231021).

The spelling of 1201210110000 in words is "one trillion, two hundred one billion, two hundred ten million, one hundred ten thousand".