1221013424022 has 32 divisors (see below), whose sum is σ = 2818520388864. Its totient is φ = 345406908000.

The previous prime is 1221013424011. The next prime is 1221013424023. The reversal of 1221013424022 is 2204243101221.

It is a junction number, because it is equal to n+sod(n) for n = 1221013423983 and 1221013424001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221013424023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143915304 + ... + 143923787.

It is an arithmetic number, because the mean of its divisors is an integer number (88078762152).

Almost surely, 2^{1221013424022} is an apocalyptic number.

1221013424022 is an abundant number, since it is smaller than the sum of its proper divisors (1597506964842).

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

1221013424022 is a wasteful number, since it uses less digits than its factorization.

1221013424022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287839204.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1221013424022 its reverse (2204243101221), we get a palindrome (3425256525243).

The spelling of 1221013424022 in words is "one trillion, two hundred twenty-one billion, thirteen million, four hundred twenty-four thousand, twenty-two".