150221222152420 has 48 divisors (see below), whose sum is σ = 323682583554288. Its totient is φ = 58527902935040.

The previous prime is 150221222152387. The next prime is 150221222152457. The reversal of 150221222152420 is 24251222122051.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 18360830782116 + 131860391370304 = 4284954^2 + 11483048^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147951607 + ... + 148963486.

It is an arithmetic number, because the mean of its divisors is an integer number (6743387157381).

Almost surely, 2^{150221222152420} is an apocalyptic number.

150221222152420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150221222152420 is an abundant number, since it is smaller than the sum of its proper divisors (173461361401868).

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

150221222152420 is a wasteful number, since it uses less digits than its factorization.

150221222152420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296915760 (or 296915758 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 150221222152420 its reverse (24251222122051), we get a palindrome (174472444274471).

The spelling of 150221222152420 in words is "one hundred fifty trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred fifty-two thousand, four hundred twenty".