221212453536260 has 24 divisors (see below), whose sum is σ = 474430113118080. Its totient is φ = 86602322235104.

The previous prime is 221212453536257. The next prime is 221212453536313. The reversal of 221212453536260 is 62635354212122.

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 7 ways as a sum of consecutive naturals, for example, 117666197750 + ... + 117666199629.

It is an arithmetic number, because the mean of its divisors is an integer number (19767921379920).

Almost surely, 2^{221212453536260} is an apocalyptic number.

221212453536260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221212453536260 is an abundant number, since it is smaller than the sum of its proper divisors (253217659581820).

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

221212453536260 is a wasteful number, since it uses less digits than its factorization.

221212453536260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235332397435 (or 235332397433 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 221212453536260 in words is "two hundred twenty-one trillion, two hundred twelve billion, four hundred fifty-three million, five hundred thirty-six thousand, two hundred sixty".