1421220303212 has 12 divisors (see below), whose sum is σ = 2487175688760. Its totient is φ = 710598677856.

The previous prime is 1421220303163. The next prime is 1421220303271. The reversal of 1421220303212 is 2123030221241.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586662 + ... + 3087597.

It is an arithmetic number, because the mean of its divisors is an integer number (207264640730).

Almost surely, 2^{1421220303212} is an apocalyptic number.

It is an amenable number.

1421220303212 is a deficient number, since it is larger than the sum of its proper divisors (1065955385548).

1421220303212 is a wasteful number, since it uses less digits than its factorization.

1421220303212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5736880 (or 5736878 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1421220303212 its reverse (2123030221241), we get a palindrome (3544250524453).

The spelling of 1421220303212 in words is "one trillion, four hundred twenty-one billion, two hundred twenty million, three hundred three thousand, two hundred twelve".