1020002221322 has 64 divisors (see below), whose sum is σ = 2011743682560. Its totient is φ = 377201836800.

The previous prime is 1020002221253. The next prime is 1020002221331. The reversal of 1020002221322 is 2231222000201.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1020002221322.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3497954 + ... + 3778317.

It is an arithmetic number, because the mean of its divisors is an integer number (31433495040).

Almost surely, 2^{1020002221322} is an apocalyptic number.

1020002221322 is a deficient number, since it is larger than the sum of its proper divisors (991741461238).

1020002221322 is a wasteful number, since it uses less digits than its factorization.

1020002221322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276347.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 1020002221322 its reverse (2231222000201), we get a palindrome (3251224221523).

The spelling of 1020002221322 in words is "one trillion, twenty billion, two million, two hundred twenty-one thousand, three hundred twenty-two".