1220010221012 has 24 divisors (see below), whose sum is σ = 2329146241632. Its totient is φ = 554541572000.

The previous prime is 1220010220991. The next prime is 1220010221041. The reversal of 1220010221012 is 2101220100221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3349058 + ... + 3695430.

It is an arithmetic number, because the mean of its divisors is an integer number (97047760068).

Almost surely, 2^{1220010221012} is an apocalyptic number.

It is an amenable number.

1220010221012 is a deficient number, since it is larger than the sum of its proper divisors (1109136020620).

1220010221012 is a wasteful number, since it uses less digits than its factorization.

1220010221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426439 (or 426437 counting only the distinct ones).

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

Adding to 1220010221012 its reverse (2101220100221), we get a palindrome (3321230321233).

The spelling of 1220010221012 in words is "one trillion, two hundred twenty billion, ten million, two hundred twenty-one thousand, twelve".