1021122112211 has 8 divisors (see below), whose sum is σ = 1051806694848. Its totient is φ = 990712728000.

The previous prime is 1021122112201. The next prime is 1021122112229. The reversal of 1021122112211 is 1122112211201.

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

It is a cyclic number.

It is not a de Polignac number, because 1021122112211 - 2¹⁰ = 1021122111187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021122112211.

It is not an unprimeable number, because it can be changed into a prime (1021122112201) 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, 68792075 + ... + 68806916.

It is an arithmetic number, because the mean of its divisors is an integer number (131475836856).

Almost surely, 2^{1021122112211} is an apocalyptic number.

1021122112211 is a deficient number, since it is larger than the sum of its proper divisors (30684582637).

1021122112211 is a wasteful number, since it uses less digits than its factorization.

1021122112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137599213.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1021122112211 its reverse (1122112211201), we get a palindrome (2143234323412).

The spelling of 1021122112211 in words is "one trillion, twenty-one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred eleven".