200221222154 has 4 divisors (see below), whose sum is σ = 300331833234. Its totient is φ = 100110611076.

The previous prime is 200221222153. The next prime is 200221222219. The reversal of 200221222154 is 451222122002.

200221222154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 192742950625 + 7478271529 = 439025^2 + 86477^2 .

It is not an unprimeable number, because it can be changed into a prime (200221222153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055305537 + ... + 50055305540.

Almost surely, 2^200221222154 is an apocalyptic number.

200221222154 is a deficient number, since it is larger than the sum of its proper divisors (100110611080).

200221222154 is a wasteful number, since it uses less digits than its factorization.

200221222154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100110611079.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 200221222154 its reverse (451222122002), we get a palindrome (651443344156).

The spelling of 200221222154 in words is "two hundred billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred fifty-four".