1021102203202 has 16 divisors (see below), whose sum is σ = 1540854756792. Its totient is φ = 507485284480.

The previous prime is 1021102203167. The next prime is 1021102203223. The reversal of 1021102203202 is 2023022011201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1016566046001 + 4536157201 = 1008249^2 + 67351^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1211052 + ... + 1873192.

Almost surely, 2^{1021102203202} is an apocalyptic number.

1021102203202 is a deficient number, since it is larger than the sum of its proper divisors (519752553590).

1021102203202 is a wasteful number, since it uses less digits than its factorization.

1021102203202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666773.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1021102203202 its reverse (2023022011201), we get a palindrome (3044124214403).

The spelling of 1021102203202 in words is "one trillion, twenty-one billion, one hundred two million, two hundred three thousand, two hundred two".