1022211001 has 32 divisors (see below), whose sum is σ = 1268064000. Its totient is φ = 821318400.

The previous prime is 1022210989. The next prime is 1022211017. The reversal of 1022211001 is 1001122201.

It is not a de Polignac number, because 1022211001 - 2²⁷ = 887993273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1022211041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 657441 + ... + 658993.

It is an arithmetic number, because the mean of its divisors is an integer number (39627000).

Almost surely, 2^1022211001 is an apocalyptic number.

It is an amenable number.

1022211001 is a deficient number, since it is larger than the sum of its proper divisors (245852999).

1022211001 is a wasteful number, since it uses less digits than its factorization.

1022211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1680 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1022211001 is about 31972.0346709433. The cubic root of 1022211001 is about 1007.3495192378.

Adding to 1022211001 its reverse (1001122201), we get a palindrome (2023333202).

The spelling of 1022211001 in words is "one billion, twenty-two million, two hundred eleven thousand, one".