1022121111023 has 4 divisors (see below), whose sum is σ = 1034435823288. Its totient is φ = 1009806398760.

The previous prime is 1022121111013. The next prime is 1022121111059. The reversal of 1022121111023 is 3201111212201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1022121111023 - 2²⁸ = 1021852675567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022121110992 and 1022121111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121111013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6157356008 + ... + 6157356173.

It is an arithmetic number, because the mean of its divisors is an integer number (258608955822).

Almost surely, 2^{1022121111023} is an apocalyptic number.

1022121111023 is a deficient number, since it is larger than the sum of its proper divisors (12314712265).

1022121111023 is an equidigital number, since it uses as much as digits as its factorization.

1022121111023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12314712264.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1022121111023 its reverse (3201111212201), we get a palindrome (4223232323224).

The spelling of 1022121111023 in words is "one trillion, twenty-two billion, one hundred twenty-one million, one hundred eleven thousand, twenty-three".