1201421201112 has 48 divisors (see below), whose sum is σ = 3549653551080. Its totient is φ = 364067030400.

The previous prime is 1201421201107. The next prime is 1201421201261. The reversal of 1201421201112 is 2111021241021.

1201421201112 is a `hidden beast` number, since 1 + 201 + 421 + 20 + 11 + 12 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 758472189 + ... + 758473772.

Almost surely, 2^{1201421201112} is an apocalyptic number.

1201421201112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201421201112 is an abundant number, since it is smaller than the sum of its proper divisors (2348232349968).

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

1201421201112 is a wasteful number, since it uses less digits than its factorization.

1201421201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516945984 (or 1516945977 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1201421201112 its reverse (2111021241021), we get a palindrome (3312442442133).

The spelling of 1201421201112 in words is "one trillion, two hundred one billion, four hundred twenty-one million, two hundred one thousand, one hundred twelve".