1220000211012 has 72 divisors (see below), whose sum is σ = 3213548459968. Its totient is φ = 359705206080.

The previous prime is 1220000211007. The next prime is 1220000211013. The reversal of 1220000211012 is 2101120000221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1220000211013) 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 23 ways as a sum of consecutive naturals, for example, 11300608 + ... + 11408055.

Almost surely, 2^{1220000211012} is an apocalyptic number.

1220000211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220000211012 is an abundant number, since it is smaller than the sum of its proper divisors (1993548248956).

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

1220000211012 is a wasteful number, since it uses less digits than its factorization.

1220000211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22708729 (or 22708716 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1220000211012 its reverse (2101120000221), we get a palindrome (3321120211233).

The spelling of 1220000211012 in words is "one trillion, two hundred twenty billion, two hundred eleven thousand, twelve".