1213012202020 has 24 divisors (see below), whose sum is σ = 2551262785344. Its totient is φ = 484454945376.

The previous prime is 1213012202009. The next prime is 1213012202021. The reversal of 1213012202020 is 202022103121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1213012201985 and 1213012202003.

It is not an unprimeable number, because it can be changed into a prime (1213012202021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46857702 + ... + 46883581.

It is an arithmetic number, because the mean of its divisors is an integer number (106302616056).

Almost surely, 2^{1213012202020} is an apocalyptic number.

1213012202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213012202020 is an abundant number, since it is smaller than the sum of its proper divisors (1338250583324).

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

1213012202020 is a wasteful number, since it uses less digits than its factorization.

1213012202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93741939 (or 93741937 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1213012202020 its reverse (202022103121), we get a palindrome (1415034305141).

The spelling of 1213012202020 in words is "one trillion, two hundred thirteen billion, twelve million, two hundred two thousand, twenty".