1002111121122 has 16 divisors (see below), whose sum is σ = 2004238026432. Its totient is φ = 334034409680.

The previous prime is 1002111121093. The next prime is 1002111121127. The reversal of 1002111121122 is 2211211112001.

It is a happy number.

It is a super-4 number, since 4×1002111121122⁴ (a number of 49 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002111121127) 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, 267868 + ... + 1440824.

It is an arithmetic number, because the mean of its divisors is an integer number (125264876652).

Almost surely, 2^{1002111121122} is an apocalyptic number.

1002111121122 is an abundant number, since it is smaller than the sum of its proper divisors (1002126905310).

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

1002111121122 is a wasteful number, since it uses less digits than its factorization.

1002111121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315353.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1002111121122 its reverse (2211211112001), we get a palindrome (3213322233123).

The spelling of 1002111121122 in words is "one trillion, two billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twenty-two".