1220002102012 has 48 divisors (see below), whose sum is σ = 2262063283200. Its totient is φ = 574128656640.

The previous prime is 1220002102009. The next prime is 1220002102021. The reversal of 1220002102012 is 2102012000221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220002101983 and 1220002102001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8248164 + ... + 8394772.

It is an arithmetic number, because the mean of its divisors is an integer number (47126318400).

Almost surely, 2^{1220002102012} is an apocalyptic number.

It is an amenable number.

1220002102012 is a deficient number, since it is larger than the sum of its proper divisors (1042061181188).

1220002102012 is a wasteful number, since it uses less digits than its factorization.

1220002102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147346 (or 147344 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1220002102012 its reverse (2102012000221), we get a palindrome (3322014102233).

The spelling of 1220002102012 in words is "one trillion, two hundred twenty billion, two million, one hundred two thousand, twelve".