1001211022 has 144 divisors (see below), whose sum is σ = 2041083360. Its totient is φ = 365933568.

The previous prime is 1001211017. The next prime is 1001211047. The reversal of 1001211022 is 2201121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 18890748 + ... + 18890800.

It is an arithmetic number, because the mean of its divisors is an integer number (14174190).

Almost surely, 2^1001211022 is an apocalyptic number.

1001211022 is an abundant number, since it is smaller than the sum of its proper divisors (1039872338).

1001211022 is a wasteful number, since it uses less digits than its factorization.

1001211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 131 counting only the distinct ones).

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

The square root of 1001211022 is about 31641.9187471304. The cubic root of 1001211022 is about 1000.4035111568.

Adding to 1001211022 its reverse (2201121001), we get a palindrome (3202332023).

The spelling of 1001211022 in words is "one billion, one million, two hundred eleven thousand, twenty-two".