1000201222122 has 16 divisors (see below), whose sum is σ = 2024503679520. Its totient is φ = 329383534832.

The previous prime is 1000201222099. The next prime is 1000201222127. The reversal of 1000201222122 is 2212221020001.

It is not an unprimeable number, because it can be changed into a prime (1000201222127) 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, 1004217597 + ... + 1004218592.

It is an arithmetic number, because the mean of its divisors is an integer number (126531479970).

Almost surely, 2^{1000201222122} is an apocalyptic number.

1000201222122 is an abundant number, since it is smaller than the sum of its proper divisors (1024302457398).

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

1000201222122 is a wasteful number, since it uses less digits than its factorization.

1000201222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008436277.

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

Adding to 1000201222122 its reverse (2212221020001), we get a palindrome (3212422242123).

The spelling of 1000201222122 in words is "one trillion, two hundred one million, two hundred twenty-two thousand, one hundred twenty-two".