200001221022 has 16 divisors (see below), whose sum is σ = 410813319312. Its totient is φ = 64865260800.

The previous prime is 200001220973. The next prime is 200001221023. The reversal of 200001221022 is 220122100002.

It is a junction number, because it is equal to n+sod(n) for n = 200001220989 and 200001221007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200001221023) 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, 450452979 + ... + 450453422.

It is an arithmetic number, because the mean of its divisors is an integer number (25675832457).

Almost surely, 2^200001221022 is an apocalyptic number.

200001221022 is an abundant number, since it is smaller than the sum of its proper divisors (210812098290).

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

200001221022 is a wasteful number, since it uses less digits than its factorization.

200001221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900906443.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 200001221022 its reverse (220122100002), we get a palindrome (420123321024).

The spelling of 200001221022 in words is "two hundred billion, one million, two hundred twenty-one thousand, twenty-two".