1022131211 has 4 divisors (see below), whose sum is σ = 1032251424. Its totient is φ = 1012011000.

The previous prime is 1022131183. The next prime is 1022131213. The reversal of 1022131211 is 1121312201.

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 1022131211 - 2⁶ = 1022131147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022131213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5059955 + ... + 5060156.

It is an arithmetic number, because the mean of its divisors is an integer number (258062856).

Almost surely, 2^1022131211 is an apocalyptic number.

1022131211 is a deficient number, since it is larger than the sum of its proper divisors (10120213).

1022131211 is a wasteful number, since it uses less digits than its factorization.

1022131211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10120212.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1022131211 is about 31970.7868373614. The cubic root of 1022131211 is about 1007.3233085666.

Adding to 1022131211 its reverse (1121312201), we get a palindrome (2143443412).

The spelling of 1022131211 in words is "one billion, twenty-two million, one hundred thirty-one thousand, two hundred eleven".