1213102123222 has 12 divisors (see below), whose sum is σ = 2000114658108. Its totient is φ = 551410055900.

The previous prime is 1213102123201. The next prime is 1213102123223. The reversal of 1213102123222 is 2223212013121.

It is a super-2 number, since 2×1213102123222² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1213102123193 and 1213102123202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213102123223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2506409104 + ... + 2506409587.

It is an arithmetic number, because the mean of its divisors is an integer number (166676221509).

Almost surely, 2^{1213102123222} is an apocalyptic number.

1213102123222 is a deficient number, since it is larger than the sum of its proper divisors (787012534886).

1213102123222 is a wasteful number, since it uses less digits than its factorization.

1213102123222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012818715 (or 5012818704 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1213102123222 its reverse (2223212013121), we get a palindrome (3436314136343).

The spelling of 1213102123222 in words is "one trillion, two hundred thirteen billion, one hundred two million, one hundred twenty-three thousand, two hundred twenty-two".