1212201201022 has 32 divisors (see below), whose sum is σ = 2117460248064. Its totient is φ = 509666320800.

The previous prime is 1212201201007. The next prime is 1212201201023. The reversal of 1212201201022 is 2201021022121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1212201200987 and 1212201201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212201201023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8814247 + ... + 8950717.

It is an arithmetic number, because the mean of its divisors is an integer number (66170632752).

Almost surely, 2^{1212201201022} is an apocalyptic number.

1212201201022 is a deficient number, since it is larger than the sum of its proper divisors (905259047042).

1212201201022 is a wasteful number, since it uses less digits than its factorization.

1212201201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148504.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212201201022 its reverse (2201021022121), we get a palindrome (3413222223143).

The spelling of 1212201201022 in words is "one trillion, two hundred twelve billion, two hundred one million, two hundred one thousand, twenty-two".