121021211111222 has 8 divisors (see below), whose sum is σ = 181567971196272. Its totient is φ = 60498554045800.

The previous prime is 121021211111159. The next prime is 121021211111237. The reversal of 121021211111222 is 222111112120121.

It is a happy number.

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

It is a super-2 number, since 2×121021211111222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121021211111194 and 121021211111203.

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, 6025742354 + ... + 6025762437.

It is an arithmetic number, because the mean of its divisors is an integer number (22695996399534).

Almost surely, 2^{121021211111222} is an apocalyptic number.

121021211111222 is a deficient number, since it is larger than the sum of its proper divisors (60546760085050).

121021211111222 is a wasteful number, since it uses less digits than its factorization.

121021211111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12051509814.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 121021211111222 its reverse (222111112120121), we get a palindrome (343132323231343).

The spelling of 121021211111222 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred eleven million, one hundred eleven thousand, two hundred twenty-two".