200221543156541 has 8 divisors (see below), whose sum is σ = 216131201009280. Its totient is φ = 184912249751152.

The previous prime is 200221543156519. The next prime is 200221543156543. The reversal of 200221543156541 is 145651345122002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200221543156541 is a prime.

It is a super-2 number, since 2×200221543156541² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200221543156543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150091111145 + ... + 150091112478.

It is an arithmetic number, because the mean of its divisors is an integer number (27016400126160).

Almost surely, 2^{200221543156541} is an apocalyptic number.

It is an amenable number.

200221543156541 is a deficient number, since it is larger than the sum of its proper divisors (15909657852739).

200221543156541 is a wasteful number, since it uses less digits than its factorization.

200221543156541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300182223675.

The product of its (nonzero) digits is 288000, while the sum is 41.

Adding to 200221543156541 its reverse (145651345122002), we get a palindrome (345872888278543).

The spelling of 200221543156541 in words is "two hundred trillion, two hundred twenty-one billion, five hundred forty-three million, one hundred fifty-six thousand, five hundred forty-one".