1022121120211 has 4 divisors (see below), whose sum is σ = 1025811088432. Its totient is φ = 1018431151992.

The previous prime is 1022121120193. The next prime is 1022121120247. The reversal of 1022121120211 is 1120211212201.

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

It is a cyclic number.

It is not a de Polignac number, because 1022121120211 - 2¹⁵ = 1022121087443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022121120011) 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, 1844983695 + ... + 1844984248.

It is an arithmetic number, because the mean of its divisors is an integer number (256452772108).

Almost surely, 2^{1022121120211} is an apocalyptic number.

1022121120211 is a deficient number, since it is larger than the sum of its proper divisors (3689968221).

1022121120211 is an equidigital number, since it uses as much as digits as its factorization.

1022121120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689968220.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1022121120211 its reverse (1120211212201), we get a palindrome (2142332332412).

The spelling of 1022121120211 in words is "one trillion, twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred eleven".