1020101220202 has 16 divisors (see below), whose sum is σ = 1561549498632. Its totient is φ = 499615916800.

The previous prime is 1020101220199. The next prime is 1020101220209. The reversal of 1020101220202 is 2020221010201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 757402943521 + 262698276681 = 870289^2 + 512541^2 .

It is not an unprimeable number, because it can be changed into a prime (1020101220209) 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, 7733299 + ... + 7864102.

Almost surely, 2^{1020101220202} is an apocalyptic number.

1020101220202 is a deficient number, since it is larger than the sum of its proper divisors (541448278430).

1020101220202 is a wasteful number, since it uses less digits than its factorization.

1020101220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15598073.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1020101220202 its reverse (2020221010201), we get a palindrome (3040322230403).

The spelling of 1020101220202 in words is "one trillion, twenty billion, one hundred one million, two hundred twenty thousand, two hundred two".