1020002221122 has 8 divisors (see below), whose sum is σ = 2040004442256. Its totient is φ = 340000740372.

The previous prime is 1020002221103. The next prime is 1020002221123. The reversal of 1020002221122 is 2211222000201.

It is a sphenic number, since it is the product of 3 distinct primes.

1020002221122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1020002221123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85000185088 + ... + 85000185099.

It is an arithmetic number, because the mean of its divisors is an integer number (255000555282).

Almost surely, 2^{1020002221122} is an apocalyptic number.

1020002221122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1020002221122 is a wasteful number, since it uses less digits than its factorization.

1020002221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170000370192.

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

Adding to 1020002221122 its reverse (2211222000201), we get a palindrome (3231224221323).

The spelling of 1020002221122 in words is "one trillion, twenty billion, two million, two hundred twenty-one thousand, one hundred twenty-two".