121211100022 has 8 divisors (see below), whose sum is σ = 181835739000. Its totient is φ = 60599187024.

The previous prime is 121211099983. The next prime is 121211100029. The reversal of 121211100022 is 220001112121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121211099975 and 121211100011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211100029) 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, 3157647 + ... + 3195802.

It is an arithmetic number, because the mean of its divisors is an integer number (22729467375).

Almost surely, 2^121211100022 is an apocalyptic number.

121211100022 is a deficient number, since it is larger than the sum of its proper divisors (60624638978).

121211100022 is an equidigital number, since it uses as much as digits as its factorization.

121211100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6362990.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121211100022 its reverse (220001112121), we get a palindrome (341212212143).

The spelling of 121211100022 in words is "one hundred twenty-one billion, two hundred eleven million, one hundred thousand, twenty-two".