121011122101222 has 4 divisors (see below), whose sum is σ = 181516683151836. Its totient is φ = 60505561050610.

The previous prime is 121011122101147. The next prime is 121011122101279. The reversal of 121011122101222 is 222101221110121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121011122101222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30252780525304 + ... + 30252780525307.

It is an arithmetic number, because the mean of its divisors is an integer number (45379170787959).

Almost surely, 2^{121011122101222} is an apocalyptic number.

121011122101222 is a deficient number, since it is larger than the sum of its proper divisors (60505561050614).

121011122101222 is an equidigital number, since it uses as much as digits as its factorization.

121011122101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60505561050613.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121011122101222 its reverse (222101221110121), we get a palindrome (343112343211343).

The spelling of 121011122101222 in words is "one hundred twenty-one trillion, eleven billion, one hundred twenty-two million, one hundred one thousand, two hundred twenty-two".