1222150004520 has 32 divisors (see below), whose sum is σ = 3666450013920. Its totient is φ = 325906667840.

The previous prime is 1222150004497. The next prime is 1222150004587. The reversal of 1222150004520 is 254000512221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5092291566 + ... + 5092291805.

It is an arithmetic number, because the mean of its divisors is an integer number (114576562935).

Almost surely, 2^{1222150004520} is an apocalyptic number.

1222150004520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222150004520 is an abundant number, since it is smaller than the sum of its proper divisors (2444300009400).

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

1222150004520 is a wasteful number, since it uses less digits than its factorization.

1222150004520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10184583385 (or 10184583381 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 1222150004520 its reverse (254000512221), we get a palindrome (1476150516741).

The spelling of 1222150004520 in words is "one trillion, two hundred twenty-two billion, one hundred fifty million, four thousand, five hundred twenty".