121002021121222 has 8 divisors (see below), whose sum is σ = 181572387070536. Its totient is φ = 60477892097712.

The previous prime is 121002021121187. The next prime is 121002021121249. The reversal of 121002021121222 is 222121120200121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121002021121222.

It is a congruent number.

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, 11559224908 + ... + 11559235375.

It is an arithmetic number, because the mean of its divisors is an integer number (22696548383817).

Almost surely, 2^{121002021121222} is an apocalyptic number.

121002021121222 is a deficient number, since it is larger than the sum of its proper divisors (60570365949314).

121002021121222 is a wasteful number, since it uses less digits than its factorization.

121002021121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23118462902.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121002021121222 its reverse (222121120200121), we get a palindrome (343123141321343).

The spelling of 121002021121222 in words is "one hundred twenty-one trillion, two billion, twenty-one million, one hundred twenty-one thousand, two hundred twenty-two".