11221210021123 has 2 divisors, whose sum is σ = 11221210021124. Its totient is φ = 11221210021122.

The previous prime is 11221210021117. The next prime is 11221210021159. The reversal of 11221210021123 is 32112001212211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11221210021123 - 2¹³ = 11221210012931 is a prime.

It is a super-2 number, since 2×11221210021123² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11221210021123.

It is not a weakly prime, because it can be changed into another prime (11221210022123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610605010561 + 5610605010562.

It is an arithmetic number, because the mean of its divisors is an integer number (5610605010562).

Almost surely, 2^{11221210021123} is an apocalyptic number.

11221210021123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221210021123 is an equidigital number, since it uses as much as digits as its factorization.

11221210021123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11221210021123 its reverse (32112001212211), we get a palindrome (43333211233334).

The spelling of 11221210021123 in words is "eleven trillion, two hundred twenty-one billion, two hundred ten million, twenty-one thousand, one hundred twenty-three".