1220122042454 has 24 divisors (see below), whose sum is σ = 2148520484880. Its totient is φ = 518112107856.

The previous prime is 1220122042439. The next prime is 1220122042471. The reversal of 1220122042454 is 4542402210221.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 57100442 + ... + 57121805.

It is an arithmetic number, because the mean of its divisors is an integer number (89521686870).

Almost surely, 2^{1220122042454} is an apocalyptic number.

1220122042454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1220122042454 is a deficient number, since it is larger than the sum of its proper divisors (928398442426).

1220122042454 is a wasteful number, since it uses less digits than its factorization.

1220122042454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114222372 (or 114222365 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 1220122042454 its reverse (4542402210221), we get a palindrome (5762524252675).

The spelling of 1220122042454 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, forty-two thousand, four hundred fifty-four".