1200021211022 has 8 divisors (see below), whose sum is σ = 1801394448672. Its totient is φ = 599556394800.

The previous prime is 1200021210979. The next prime is 1200021211043. The reversal of 1200021211022 is 2201121200021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1200021210988 and 1200021211006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227102054 + ... + 227107337.

It is an arithmetic number, because the mean of its divisors is an integer number (225174306084).

Almost surely, 2^{1200021211022} is an apocalyptic number.

1200021211022 is a deficient number, since it is larger than the sum of its proper divisors (601373237650).

1200021211022 is a wasteful number, since it uses less digits than its factorization.

1200021211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454210714.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1200021211022 its reverse (2201121200021), we get a palindrome (3401142411043).

The spelling of 1200021211022 in words is "one trillion, two hundred billion, twenty-one million, two hundred eleven thousand, twenty-two".