121101111022 has 16 divisors (see below), whose sum is σ = 193805287632. Its totient is φ = 56553727360.

The previous prime is 121101111013. The next prime is 121101111029. The reversal of 121101111022 is 220111101121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121101110993 and 121101111011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101111029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13590193 + ... + 13599100.

It is an arithmetic number, because the mean of its divisors is an integer number (12112830477).

Almost surely, 2^121101111022 is an apocalyptic number.

121101111022 is a deficient number, since it is larger than the sum of its proper divisors (72704176610).

121101111022 is a wasteful number, since it uses less digits than its factorization.

121101111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27189443.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121101111022 its reverse (220111101121), we get a palindrome (341212212143).

Subtracting 121101111022 from its reverse (220111101121), we obtain a palindrome (99009990099).

The spelling of 121101111022 in words is "one hundred twenty-one billion, one hundred one million, one hundred eleven thousand, twenty-two".