1022121000122 has 4 divisors (see below), whose sum is σ = 1533181500186. Its totient is φ = 511060500060.

The previous prime is 1022121000113. The next prime is 1022121000139. The reversal of 1022121000122 is 2210001212201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 922581381121 + 99539619001 = 960511^2 + 315499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1022121000097 and 1022121000106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255530250029 + ... + 255530250032.

Almost surely, 2^{1022121000122} is an apocalyptic number.

1022121000122 is a deficient number, since it is larger than the sum of its proper divisors (511060500064).

1022121000122 is an equidigital number, since it uses as much as digits as its factorization.

1022121000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511060500063.

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

Adding to 1022121000122 its reverse (2210001212201), we get a palindrome (3232122212323).

The spelling of 1022121000122 in words is "one trillion, twenty-two billion, one hundred twenty-one million, one hundred twenty-two", and thus it is an aban number.