1212101123222 has 8 divisors (see below), whose sum is σ = 1983438201672. Its totient is φ = 550955056000.

The previous prime is 1212101123209. The next prime is 1212101123227. The reversal of 1212101123222 is 2223211012121.

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

It is a super-2 number, since 2×1212101123222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212101123194 and 1212101123203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212101123227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27547752779 + ... + 27547752822.

It is an arithmetic number, because the mean of its divisors is an integer number (247929775209).

Almost surely, 2^{1212101123222} is an apocalyptic number.

1212101123222 is a deficient number, since it is larger than the sum of its proper divisors (771337078450).

1212101123222 is a wasteful number, since it uses less digits than its factorization.

1212101123222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55095505614.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1212101123222 its reverse (2223211012121), we get a palindrome (3435312135343).

The spelling of 1212101123222 in words is "one trillion, two hundred twelve billion, one hundred one million, one hundred twenty-three thousand, two hundred twenty-two".