1222234557890 has 32 divisors (see below), whose sum is σ = 2209018646016. Its totient is φ = 486895024000.

The previous prime is 1222234557889. The next prime is 1222234557937. The reversal of 1222234557890 is 987554322221.

It is a super-2 number, since 2×1222234557890² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31890479 + ... + 31928781.

It is an arithmetic number, because the mean of its divisors is an integer number (69031832688).

Almost surely, 2^{1222234557890} is an apocalyptic number.

1222234557890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222234557890 is a deficient number, since it is larger than the sum of its proper divisors (986784088126).

1222234557890 is a wasteful number, since it uses less digits than its factorization.

1222234557890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51274.

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 1222234557890 in words is "one trillion, two hundred twenty-two billion, two hundred thirty-four million, five hundred fifty-seven thousand, eight hundred ninety".