1001212101122 has 4 divisors (see below), whose sum is σ = 1501818151686. Its totient is φ = 500606050560.

The previous prime is 1001212101107. The next prime is 1001212101151. The reversal of 1001212101122 is 2211012121001.

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., 659163748321 + 342048352801 = 811889^2 + 584849^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1001212101097 and 1001212101106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250303025279 + ... + 250303025282.

Almost surely, 2^{1001212101122} is an apocalyptic number.

1001212101122 is a deficient number, since it is larger than the sum of its proper divisors (500606050564).

1001212101122 is an equidigital number, since it uses as much as digits as its factorization.

1001212101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500606050563.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1001212101122 its reverse (2211012121001), we get a palindrome (3212224222123).

The spelling of 1001212101122 in words is "one trillion, one billion, two hundred twelve million, one hundred one thousand, one hundred twenty-two".