1200001012022 has 32 divisors (see below), whose sum is σ = 1866651153408. Its totient is φ = 578186332416.

The previous prime is 1200001012013. The next prime is 1200001012099. The reversal of 1200001012022 is 2202101000021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1200001011994 and 1200001012012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13098278 + ... + 13189574.

It is an arithmetic number, because the mean of its divisors is an integer number (58332848544).

Almost surely, 2^{1200001012022} is an apocalyptic number.

1200001012022 is a deficient number, since it is larger than the sum of its proper divisors (666650141386).

1200001012022 is a wasteful number, since it uses less digits than its factorization.

1200001012022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93500.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1200001012022 its reverse (2202101000021), we get a palindrome (3402102012043).

The spelling of 1200001012022 in words is "one trillion, two hundred billion, one million, twelve thousand, twenty-two".