1221412124022 has 32 divisors (see below), whose sum is σ = 2489055858432. Its totient is φ = 399432974304.

The previous prime is 1221412123993. The next prime is 1221412124029. The reversal of 1221412124022 is 2204212141221.

It is a junction number, because it is equal to n+sod(n) for n = 1221412123983 and 1221412124001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221412124029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6085393 + ... + 6282899.

It is an arithmetic number, because the mean of its divisors is an integer number (77782995576).

Almost surely, 2^{1221412124022} is an apocalyptic number.

1221412124022 is an abundant number, since it is smaller than the sum of its proper divisors (1267643734410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1221412124022 is a wasteful number, since it uses less digits than its factorization.

1221412124022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217012.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 1221412124022 its reverse (2204212141221), we get a palindrome (3425624265243).

The spelling of 1221412124022 in words is "one trillion, two hundred twenty-one billion, four hundred twelve million, one hundred twenty-four thousand, twenty-two".