1022001111222 has 64 divisors (see below), whose sum is σ = 2516117850624. Its totient is φ = 269493454080.

The previous prime is 1022001111221. The next prime is 1022001111223. The reversal of 1022001111222 is 2221111002201.

1022001111222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1022001111221) and next prime (1022001111223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022001111221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3158322 + ... + 3466842.

It is an arithmetic number, because the mean of its divisors is an integer number (39314341416).

Almost surely, 2^{1022001111222} is an apocalyptic number.

1022001111222 is an abundant number, since it is smaller than the sum of its proper divisors (1494116739402).

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

1022001111222 is a wasteful number, since it uses less digits than its factorization.

1022001111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314613.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1022001111222 its reverse (2221111002201), we get a palindrome (3243112113423).

The spelling of 1022001111222 in words is "one trillion, twenty-two billion, one million, one hundred eleven thousand, two hundred twenty-two".