221411645060420 has 12 divisors (see below), whose sum is σ = 464964454626924. Its totient is φ = 88564658024160.

The previous prime is 221411645060413. The next prime is 221411645060467. The reversal of 221411645060420 is 24060546114122.

It can be written as a sum of positive squares in 2 ways, for example, as 36077129267776 + 185334515792644 = 6006424^2 + 13613762^2 .

It is a super-2 number, since 2×221411645060420² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5535291126491 + ... + 5535291126530.

It is an arithmetic number, because the mean of its divisors is an integer number (38747037885577).

Almost surely, 2^{221411645060420} is an apocalyptic number.

221411645060420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221411645060420 is an abundant number, since it is smaller than the sum of its proper divisors (243552809566504).

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

221411645060420 is a wasteful number, since it uses less digits than its factorization.

221411645060420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11070582253030 (or 11070582253028 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 221411645060420 in words is "two hundred twenty-one trillion, four hundred eleven billion, six hundred forty-five million, sixty thousand, four hundred twenty".