200221100022021 has 16 divisors (see below), whose sum is σ = 287505173962944. Its totient is φ = 123209466130944.

The previous prime is 200221100021977. The next prime is 200221100022121. The reversal of 200221100022021 is 120220001122002.

It is not a de Polignac number, because 200221100022021 - 2¹⁴ = 200221100005637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200221100022121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71918476 + ... + 74650581.

It is an arithmetic number, because the mean of its divisors is an integer number (17969073372684).

Almost surely, 2^{200221100022021} is an apocalyptic number.

It is an amenable number.

200221100022021 is a deficient number, since it is larger than the sum of its proper divisors (87284073940923).

200221100022021 is a wasteful number, since it uses less digits than its factorization.

200221100022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146604100.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200221100022021 its reverse (120220001122002), we get a palindrome (320441101144023).

The spelling of 200221100022021 in words is "two hundred trillion, two hundred twenty-one billion, one hundred million, twenty-two thousand, twenty-one".