2001022 has 16 divisors (see below), whose sum is σ = 3096720.
Its totient is φ = 969408.
The previous prime is 2000989. The next prime is 2001037. The reversal of 2001022 is 2201002.
Adding to 2001022 its reverse (2201002), we get a palindrome (4202024).
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 2000996 and 2001014.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14538 + ... + 14674.
It is an arithmetic number, because the mean of its divisors is an integer number (193545).
22001022 is an apocalyptic number.
2001022 is a deficient number, since it is larger than the sum of its proper divisors (1095698).
2001022 is a wasteful number, since it uses less digits than its factorization.
2001022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 315.
The product of its (nonzero) digits is 8, while the sum is 7.
The square root of 2001022 is about 1414.5748477900.
The cubic root of 2001022 is about 126.0135619903.
The spelling of 2001022 in words is "two million, one thousand, twenty-two".