1023111221222 has 16 divisors (see below), whose sum is σ = 1559877191232. Its totient is φ = 503152715520.

The previous prime is 1023111221219. The next prime is 1023111221239. The reversal of 1023111221222 is 2221221113201.

It is a junction number, because it is equal to n+sod(n) for n = 1023111221194 and 1023111221203.

It is a congruent number.

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, 4058963 + ... + 4303649.

It is an arithmetic number, because the mean of its divisors is an integer number (97492324452).

Almost surely, 2^{1023111221222} is an apocalyptic number.

1023111221222 is a deficient number, since it is larger than the sum of its proper divisors (536765970010).

1023111221222 is a wasteful number, since it uses less digits than its factorization.

1023111221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279023.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1023111221222 its reverse (2221221113201), we get a palindrome (3244332334423).

The spelling of 1023111221222 in words is "one trillion, twenty-three billion, one hundred eleven million, two hundred twenty-one thousand, two hundred twenty-two".