1001022221210 has 32 divisors (see below), whose sum is σ = 2051106406272. Its totient is φ = 348181641280.

The previous prime is 1001022221153. The next prime is 1001022221219. The reversal of 1001022221210 is 121222201001.

1001022221210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1001022221219) 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, 197827949 + ... + 197833008.

It is an arithmetic number, because the mean of its divisors is an integer number (64097075196).

Almost surely, 2^{1001022221210} is an apocalyptic number.

1001022221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001022221210 is an abundant number, since it is smaller than the sum of its proper divisors (1050084185062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001022221210 is a wasteful number, since it uses less digits than its factorization.

1001022221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395660998.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1001022221210 its reverse (121222201001), we get a palindrome (1122244422211).

The spelling of 1001022221210 in words is "one trillion, one billion, twenty-two million, two hundred twenty-one thousand, two hundred ten".