1201111212132 has 72 divisors (see below), whose sum is σ = 3375165597440. Its totient is φ = 357650976960.

The previous prime is 1201111212107. The next prime is 1201111212151. The reversal of 1201111212132 is 2312121111021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41380282 + ... + 41409297.

Almost surely, 2^{1201111212132} is an apocalyptic number.

1201111212132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201111212132 is an abundant number, since it is smaller than the sum of its proper divisors (2174054385308).

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

1201111212132 is a wasteful number, since it uses less digits than its factorization.

1201111212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82789633 (or 82789628 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1201111212132 its reverse (2312121111021), we get a palindrome (3513232323153).

The spelling of 1201111212132 in words is "one trillion, two hundred one billion, one hundred eleven million, two hundred twelve thousand, one hundred thirty-two".