221462345754122 has 24 divisors (see below), whose sum is σ = 386617055720868. Its totient is φ = 94743249518720.

The previous prime is 221462345754079. The next prime is 221462345754197. The reversal of 221462345754122 is 221457543264122.

Added to its reverse (221457543264122) it gives a square (442919889018244 = 21045662²).

It can be written as a sum of positive squares in 2 ways, for example, as 203092112579521 + 18370233174601 = 14251039^2 + 4286051^2 .

221462345754122 is a rare number.

It is a super-3 number, since 3×221462345754122³ (a number of 44 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26915691773 + ... + 26915700000.

Almost surely, 2^{221462345754122} is an apocalyptic number.

221462345754122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221462345754122 is a deficient number, since it is larger than the sum of its proper divisors (165154709966746).

221462345754122 is a wasteful number, since it uses less digits than its factorization.

221462345754122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53831391814 (or 53831391803 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 50.

Adding to 221462345754122 its reverse (221457543264122), we get a square (442919889018244 = 21045662²).

Subtracting from 221462345754122 its reverse (221457543264122), we obtain a square (4802490000 = 69300²).

The spelling of 221462345754122 in words is "two hundred twenty-one trillion, four hundred sixty-two billion, three hundred forty-five million, seven hundred fifty-four thousand, one hundred twenty-two".