1220021141123 has 2 divisors, whose sum is σ = 1220021141124. Its totient is φ = 1220021141122.

The previous prime is 1220021141107. The next prime is 1220021141149. The reversal of 1220021141123 is 3211411200221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220021141123 - 2⁴ = 1220021141107 is a prime.

It is a super-2 number, since 2×1220021141123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220021141095 and 1220021141104.

It is not a weakly prime, because it can be changed into another prime (1220021141153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610010570561 + 610010570562.

It is an arithmetic number, because the mean of its divisors is an integer number (610010570562).

Almost surely, 2^{1220021141123} is an apocalyptic number.

1220021141123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220021141123 is an equidigital number, since it uses as much as digits as its factorization.

1220021141123 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1220021141123 its reverse (3211411200221), we get a palindrome (4431432341344).

The spelling of 1220021141123 in words is "one trillion, two hundred twenty billion, twenty-one million, one hundred forty-one thousand, one hundred twenty-three".