1022001120211 has 4 divisors (see below), whose sum is σ = 1023283431072. Its totient is φ = 1020718809352.

The previous prime is 1022001120191. The next prime is 1022001120233. The reversal of 1022001120211 is 1120211002201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022001120211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022001120191 and 1022001120200.

It is not an unprimeable number, because it can be changed into a prime (1022001120271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641154235 + ... + 641155828.

It is an arithmetic number, because the mean of its divisors is an integer number (255820857768).

Almost surely, 2^{1022001120211} is an apocalyptic number.

1022001120211 is a deficient number, since it is larger than the sum of its proper divisors (1282310861).

1022001120211 is an equidigital number, since it uses as much as digits as its factorization.

1022001120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282310860.

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

Adding to 1022001120211 its reverse (1120211002201), we get a palindrome (2142212122412).

The spelling of 1022001120211 in words is "one trillion, twenty-two billion, one million, one hundred twenty thousand, two hundred eleven".