221111121210122 has 32 divisors (see below), whose sum is σ = 389654567596224. Its totient is φ = 92772896976000.

The previous prime is 221111121210103. The next prime is 221111121210139. The reversal of 221111121210122 is 221012121111122.

It is a happy number.

221111121210122 is digitally balanced in base 2, 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 = 221111121210094 and 221111121210103.

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, 22714622 + ... + 30954422.

It is an arithmetic number, because the mean of its divisors is an integer number (12176705237382).

Almost surely, 2^{221111121210122} is an apocalyptic number.

221111121210122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221111121210122 is a deficient number, since it is larger than the sum of its proper divisors (168543446386102).

221111121210122 is a wasteful number, since it uses less digits than its factorization.

221111121210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8333654.

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

Adding to 221111121210122 its reverse (221012121111122), we get a palindrome (442123242321244).

The spelling of 221111121210122 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".