1021112122210 has 8 divisors (see below), whose sum is σ = 1838001819996. Its totient is φ = 408444848880.

The previous prime is 1021112122193. The next prime is 1021112122213. The reversal of 1021112122210 is 122212111201.

It can be written as a sum of positive squares in 2 ways, for example, as 1012070204289 + 9041917921 = 1006017^2 + 95089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1021112122210² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1021112122213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51055606101 + ... + 51055606120.

Almost surely, 2^{1021112122210} is an apocalyptic number.

1021112122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021112122210 is a deficient number, since it is larger than the sum of its proper divisors (816889697786).

1021112122210 is a wasteful number, since it uses less digits than its factorization.

1021112122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102111212228.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1021112122210 its reverse (122212111201), we get a palindrome (1143324233411).

The spelling of 1021112122210 in words is "one trillion, twenty-one billion, one hundred twelve million, one hundred twenty-two thousand, two hundred ten".