1212021041 has 32 divisors (see below), whose sum is σ = 1631232000. Its totient is φ = 872182080.

The previous prime is 1212020987. The next prime is 1212021047. The reversal of 1212021041 is 1401202121.

It is a happy number.

It is not a de Polignac number, because 1212021041 - 2¹⁴ = 1212004657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212021047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39560 + ... + 63158.

It is an arithmetic number, because the mean of its divisors is an integer number (50976000).

Almost surely, 2^1212021041 is an apocalyptic number.

1212021041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212021041 is a deficient number, since it is larger than the sum of its proper divisors (419210959).

1212021041 is a wasteful number, since it uses less digits than its factorization.

1212021041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23669.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1212021041 is about 34814.0925632135. The cubic root of 1212021041 is about 1066.1951921020.

Adding to 1212021041 its reverse (1401202121), we get a palindrome (2613223162).

The spelling of 1212021041 in words is "one billion, two hundred twelve million, twenty-one thousand, forty-one".