1213222298990 has 96 divisors (see below), whose sum is σ = 2483181398880. Its totient is φ = 424193511168.

The previous prime is 1213222298929. The next prime is 1213222298993. The reversal of 1213222298990 is 998922223121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213222298993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143930096 + ... + 143938524.

It is an arithmetic number, because the mean of its divisors is an integer number (25866472905).

Almost surely, 2^{1213222298990} is an apocalyptic number.

1213222298990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213222298990 is an abundant number, since it is smaller than the sum of its proper divisors (1269959099890).

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

1213222298990 is a wasteful number, since it uses less digits than its factorization.

1213222298990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11554 (or 11535 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 1213222298990 in words is "one trillion, two hundred thirteen billion, two hundred twenty-two million, two hundred ninety-eight thousand, nine hundred ninety".