1012202122012 has 24 divisors (see below), whose sum is σ = 1793732459904. Its totient is φ = 499737948912.

The previous prime is 1012202121899. The next prime is 1012202122013. The reversal of 1012202122012 is 2102212022101.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012202122013) 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, 3720328 + ... + 3983119.

It is an arithmetic number, because the mean of its divisors is an integer number (74738852496).

Almost surely, 2^{1012202122012} is an apocalyptic number.

It is an amenable number.

1012202122012 is a deficient number, since it is larger than the sum of its proper divisors (781530337892).

1012202122012 is a wasteful number, since it uses less digits than its factorization.

1012202122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7703865 (or 7703863 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1012202122012 its reverse (2102212022101), we get a palindrome (3114414144113).

The spelling of 1012202122012 in words is "one trillion, twelve billion, two hundred two million, one hundred twenty-two thousand, twelve".