1022212122210 has 128 divisors (see below), whose sum is σ = 2773162656000. Its totient is φ = 267867081216.

The previous prime is 1022212122187. The next prime is 1022212122271. The reversal of 1022212122210 is 122212122201.

It is a happy number.

1022212122210 is a `hidden beast` number, since 10 + 2 + 221 + 212 + 221 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47285364 + ... + 47306976.

It is an arithmetic number, because the mean of its divisors is an integer number (21665333250).

Almost surely, 2^{1022212122210} is an apocalyptic number.

1022212122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022212122210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1386581328000).

1022212122210 is an abundant number, since it is smaller than the sum of its proper divisors (1750950533790).

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

1022212122210 is a wasteful number, since it uses less digits than its factorization.

1022212122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24657 (or 24651 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1022212122210 its reverse (122212122201), we get a palindrome (1144424244411).

Subtracting from 1022212122210 its reverse (122212122201), we obtain a palindrome (900000000009).

The spelling of 1022212122210 in words is "one trillion, twenty-two billion, two hundred twelve million, one hundred twenty-two thousand, two hundred ten".