200221222212121 has 8 divisors (see below), whose sum is σ = 218559922438464. Its totient is φ = 181905317141520.

The previous prime is 200221222212119. The next prime is 200221222212161. The reversal of 200221222212121 is 121212222122002.

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

It is a cyclic number.

It is not a de Polignac number, because 200221222212121 - 2¹ = 200221222212119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200221222212092 and 200221222212101.

It is not an unprimeable number, because it can be changed into a prime (200221222212161) 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, 5698770565 + ... + 5698805698.

It is an arithmetic number, because the mean of its divisors is an integer number (27319990304808).

Almost surely, 2^{200221222212121} is an apocalyptic number.

It is an amenable number.

200221222212121 is a deficient number, since it is larger than the sum of its proper divisors (18338700226343).

200221222212121 is a wasteful number, since it uses less digits than its factorization.

200221222212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11397577871.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 200221222212121 its reverse (121212222122002), we get a palindrome (321433444334123).

The spelling of 200221222212121 in words is "two hundred trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, one hundred twenty-one".