1012211001222 has 32 divisors (see below), whose sum is σ = 2044778591232. Its totient is φ = 334013152704.

The previous prime is 1012211001187. The next prime is 1012211001223. The reversal of 1012211001222 is 2221001122101.

It is a super-2 number, since 2×1012211001222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012211001223) 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, 1529098 + ... + 2088674.

It is an arithmetic number, because the mean of its divisors is an integer number (63899330976).

Almost surely, 2^{1012211001222} is an apocalyptic number.

1012211001222 is an abundant number, since it is smaller than the sum of its proper divisors (1032567590010).

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

1012211001222 is a wasteful number, since it uses less digits than its factorization.

1012211001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562612.

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

Adding to 1012211001222 its reverse (2221001122101), we get a palindrome (3233212123323).

The spelling of 1012211001222 in words is "one trillion, twelve billion, two hundred eleven million, one thousand, two hundred twenty-two".