121021221122 has 8 divisors (see below), whose sum is σ = 182054979216. Its totient is φ = 60336228052.

The previous prime is 121021221019. The next prime is 121021221187. The reversal of 121021221122 is 221122120121.

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

It is a super-2 number, since 2×121021221122² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121021221122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87190388 + ... + 87191775.

It is an arithmetic number, because the mean of its divisors is an integer number (22756872402).

Almost surely, 2^121021221122 is an apocalyptic number.

121021221122 is a deficient number, since it is larger than the sum of its proper divisors (61033758094).

121021221122 is a wasteful number, since it uses less digits than its factorization.

121021221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174382512.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121021221122 its reverse (221122120121), we get a palindrome (342143341243).

The spelling of 121021221122 in words is "one hundred twenty-one billion, twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".