1012201102012 has 24 divisors (see below), whose sum is σ = 1828821895040. Its totient is φ = 489686446080.

The previous prime is 1012201101997. The next prime is 1012201102013. The reversal of 1012201102012 is 2102011022101.

It is a junction number, because it is equal to n+sod(n) for n = 1012201101983 and 1012201102001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012201102013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42333 + ... + 1423444.

Almost surely, 2^{1012201102012} is an apocalyptic number.

It is an amenable number.

1012201102012 is a deficient number, since it is larger than the sum of its proper divisors (816620793028).

1012201102012 is a wasteful number, since it uses less digits than its factorization.

1012201102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471381 (or 1471379 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1012201102012 its reverse (2102011022101), we get a palindrome (3114212124113).

The spelling of 1012201102012 in words is "one trillion, twelve billion, two hundred one million, one hundred two thousand, twelve".