1002021220012 has 48 divisors (see below), whose sum is σ = 1853731202400. Its totient is φ = 472611525120.

The previous prime is 1002021220009. The next prime is 1002021220037. The reversal of 1002021220012 is 2100221202001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1002021219974 and 1002021220001.

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, 39096562 + ... + 39122182.

It is an arithmetic number, because the mean of its divisors is an integer number (38619400050).

Almost surely, 2^{1002021220012} is an apocalyptic number.

It is an amenable number.

1002021220012 is a deficient number, since it is larger than the sum of its proper divisors (851709982388).

1002021220012 is a wasteful number, since it uses less digits than its factorization.

1002021220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27826 (or 27824 counting only the distinct ones).

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

Adding to 1002021220012 its reverse (2100221202001), we get a palindrome (3102242422013).

The spelling of 1002021220012 in words is "one trillion, two billion, twenty-one million, two hundred twenty thousand, twelve".