1022001231 has 16 divisors (see below), whose sum is σ = 1375016544. Its totient is φ = 675177984.

The previous prime is 1022001187. The next prime is 1022001289. The reversal of 1022001231 is 1321002201.

1022001231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1022001231 - 2¹⁷ = 1021870159 is a prime.

It is a super-2 number, since 2×1022001231² = 2088973032331030722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022002231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276411 + ... + 280083.

It is an arithmetic number, because the mean of its divisors is an integer number (85938534).

Almost surely, 2^1022001231 is an apocalyptic number.

1022001231 is a deficient number, since it is larger than the sum of its proper divisors (353015313).

1022001231 is a wasteful number, since it uses less digits than its factorization.

1022001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1022001231 is about 31968.7539794719. The cubic root of 1022001231 is about 1007.2806077754.

Adding to 1022001231 its reverse (1321002201), we get a palindrome (2343003432).

The spelling of 1022001231 in words is "one billion, twenty-two million, one thousand, two hundred thirty-one".