1021222001122 has 16 divisors (see below), whose sum is σ = 1554852515832. Its totient is φ = 502989155200.

The previous prime is 1021222001047. The next prime is 1021222001131. The reversal of 1021222001122 is 2211002221201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 940979541681 + 80242459441 = 970041^2 + 283271^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1021222001096 and 1021222001105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12791563 + ... + 12871150.

Almost surely, 2^{1021222001122} is an apocalyptic number.

1021222001122 is a deficient number, since it is larger than the sum of its proper divisors (533630514710).

1021222001122 is a wasteful number, since it uses less digits than its factorization.

1021222001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25663013.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021222001122 its reverse (2211002221201), we get a palindrome (3232224222323).

The spelling of 1021222001122 in words is "one trillion, twenty-one billion, two hundred twenty-two million, one thousand, one hundred twenty-two".