121112211022 has 16 divisors (see below), whose sum is σ = 198513396144. Its totient is φ = 54959400000.

The previous prime is 121112211013. The next prime is 121112211023. The reversal of 121112211022 is 220112211121.

It is a junction number, because it is equal to n+sod(n) for n = 121112210987 and 121112211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112211023) 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, 4566729 + ... + 4593172.

It is an arithmetic number, because the mean of its divisors is an integer number (12407087259).

Almost surely, 2^121112211022 is an apocalyptic number.

121112211022 is a deficient number, since it is larger than the sum of its proper divisors (77401185122).

121112211022 is a wasteful number, since it uses less digits than its factorization.

121112211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9160515.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121112211022 its reverse (220112211121), we get a palindrome (341224422143).

Subtracting 121112211022 from its reverse (220112211121), we obtain a palindrome (99000000099).

The spelling of 121112211022 in words is "one hundred twenty-one billion, one hundred twelve million, two hundred eleven thousand, twenty-two".