1021112112122 has 8 divisors (see below), whose sum is σ = 1534225212000. Its totient is φ = 509703708124.

The previous prime is 1021112112113. The next prime is 1021112112143. The reversal of 1021112112122 is 2212112111201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1021112112122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426172472 + ... + 426174867.

It is an arithmetic number, because the mean of its divisors is an integer number (191778151500).

Almost surely, 2^{1021112112122} is an apocalyptic number.

1021112112122 is a deficient number, since it is larger than the sum of its proper divisors (513113099878).

1021112112122 is an equidigital number, since it uses as much as digits as its factorization.

1021112112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852347940.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1021112112122 its reverse (2212112111201), we get a palindrome (3233224223323).

The spelling of 1021112112122 in words is "one trillion, twenty-one billion, one hundred twelve million, one hundred twelve thousand, one hundred twenty-two".