120001212112222 has 16 divisors (see below), whose sum is σ = 205849685993472. Its totient is φ = 51395760312120.

The previous prime is 120001212112219. The next prime is 120001212112231. The reversal of 120001212112222 is 222211212100021.

It is a self number, because there is not a number n which added to its sum of digits gives 120001212112222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2777527054 + ... + 2777570257.

It is an arithmetic number, because the mean of its divisors is an integer number (12865605374592).

Almost surely, 2^{120001212112222} is an apocalyptic number.

120001212112222 is a deficient number, since it is larger than the sum of its proper divisors (85848473881250).

120001212112222 is a wasteful number, since it uses less digits than its factorization.

120001212112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555098863.

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

Adding to 120001212112222 its reverse (222211212100021), we get a palindrome (342212424212243).

The spelling of 120001212112222 in words is "one hundred twenty trillion, one billion, two hundred twelve million, one hundred twelve thousand, two hundred twenty-two".