1001202021222 has 32 divisors (see below), whose sum is σ = 2197122586848. Its totient is φ = 302249665536.

The previous prime is 1001202021191. The next prime is 1001202021227. The reversal of 1001202021222 is 2221202021001.

1001202021222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001202021227) 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, 121089483 + ... + 121097750.

It is an arithmetic number, because the mean of its divisors is an integer number (68660080839).

Almost surely, 2^{1001202021222} is an apocalyptic number.

1001202021222 is an abundant number, since it is smaller than the sum of its proper divisors (1195920565626).

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

1001202021222 is a wasteful number, since it uses less digits than its factorization.

1001202021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242187304.

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

Adding to 1001202021222 its reverse (2221202021001), we get a palindrome (3222404042223).

The spelling of 1001202021222 in words is "one trillion, one billion, two hundred two million, twenty-one thousand, two hundred twenty-two".