1022011001 has 8 divisors (see below), whose sum is σ = 1115186304. Its totient is φ = 928879920.

The previous prime is 1022010989. The next prime is 1022011027. The reversal of 1022011001 is 1001102201.

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 1022011001 - 2⁶ = 1022010937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022011001.

It is not an unprimeable number, because it can be changed into a prime (1022011051) 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, 53891 + ... + 70343.

It is an arithmetic number, because the mean of its divisors is an integer number (139398288).

Almost surely, 2^1022011001 is an apocalyptic number.

1022011001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1022011001 is a deficient number, since it is larger than the sum of its proper divisors (93175303).

1022011001 is a wasteful number, since it uses less digits than its factorization.

1022011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22111.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1022011001 is about 31968.9067845618. The cubic root of 1022011001 is about 1007.2838175237.

Adding to 1022011001 its reverse (1001102201), we get a palindrome (2023113202).

It can be divided in two parts, 102201 and 1001, that multiplied together give a palindrome (102303201).

The spelling of 1022011001 in words is "one billion, twenty-two million, eleven thousand, one".