121111120022222 has 32 divisors (see below), whose sum is σ = 198831248605440. Its totient is φ = 54870144563520.

The previous prime is 121111120022183. The next prime is 121111120022231. The reversal of 121111120022222 is 222220021111121.

121111120022222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121111120022194 and 121111120022203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84281429 + ... + 85706367.

It is an arithmetic number, because the mean of its divisors is an integer number (6213476518920).

Almost surely, 2^{121111120022222} is an apocalyptic number.

121111120022222 is a deficient number, since it is larger than the sum of its proper divisors (77720128583218).

121111120022222 is a wasteful number, since it uses less digits than its factorization.

121111120022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437608.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121111120022222 its reverse (222220021111121), we get a palindrome (343331141133343).

The spelling of 121111120022222 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred twenty million, twenty-two thousand, two hundred twenty-two".