1220303202012 has 36 divisors (see below), whose sum is σ = 3159890815536. Its totient is φ = 396846569280.

The previous prime is 1220303201993. The next prime is 1220303202029. The reversal of 1220303202012 is 2102023030221.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 413380368 + ... + 413383319.

It is an arithmetic number, because the mean of its divisors is an integer number (87774744876).

Almost surely, 2^{1220303202012} is an apocalyptic number.

1220303202012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220303202012 is an abundant number, since it is smaller than the sum of its proper divisors (1939587613524).

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

1220303202012 is a wasteful number, since it uses less digits than its factorization.

1220303202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826763738 (or 826763733 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1220303202012 its reverse (2102023030221), we get a palindrome (3322326232233).

The spelling of 1220303202012 in words is "one trillion, two hundred twenty billion, three hundred three million, two hundred two thousand, twelve".