1221123101422 has 32 divisors (see below), whose sum is σ = 2096973204480. Its totient is φ = 522433946880.

The previous prime is 1221123101399. The next prime is 1221123101449. The reversal of 1221123101422 is 2241013211221.

It is a super-2 number, since 2×1221123101422² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1221123101393 and 1221123101402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73914079 + ... + 73930597.

It is an arithmetic number, because the mean of its divisors is an integer number (65530412640).

Almost surely, 2^{1221123101422} is an apocalyptic number.

1221123101422 is a deficient number, since it is larger than the sum of its proper divisors (875850103058).

1221123101422 is a wasteful number, since it uses less digits than its factorization.

1221123101422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25336.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1221123101422 its reverse (2241013211221), we get a palindrome (3462136312643).

The spelling of 1221123101422 in words is "one trillion, two hundred twenty-one billion, one hundred twenty-three million, one hundred one thousand, four hundred twenty-two".