1201421412 has 36 divisors (see below), whose sum is σ = 3037982220. Its totient is φ = 400334592.

The previous prime is 1201421393. The next prime is 1201421423. The reversal of 1201421412 is 2141241021.

1201421412 is a `hidden beast` number, since 1 + 201 + 421 + 41 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 761428836 + 439992576 = 27594^2 + 20976^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 186664 + ... + 192992.

It is an arithmetic number, because the mean of its divisors is an integer number (84388395).

Almost surely, 2^1201421412 is an apocalyptic number.

1201421412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201421412 is an abundant number, since it is smaller than the sum of its proper divisors (1836560808).

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

1201421412 is a wasteful number, since it uses less digits than its factorization.

1201421412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11612 (or 11607 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1201421412 is about 34661.5263945488. The cubic root of 1201421412 is about 1063.0779801946.

Adding to 1201421412 its reverse (2141241021), we get a palindrome (3342662433).

The spelling of 1201421412 in words is "one billion, two hundred one million, four hundred twenty-one thousand, four hundred twelve".