202021000111010 has 16 divisors (see below), whose sum is σ = 363647291136696. Its totient is φ = 80806290947328.

The previous prime is 202021000111003. The next prime is 202021000111039. The reversal of 202021000111010 is 10111000120202.

It can be written as a sum of positive squares in 4 ways, for example, as 182479923471169 + 19541076639841 = 13508513^2 + 4420529^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202021000110982 and 202021000111000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263234807 + ... + 264001146.

Almost surely, 2^{202021000111010} is an apocalyptic number.

202021000111010 is a deficient number, since it is larger than the sum of its proper divisors (161626291025686).

202021000111010 is a wasteful number, since it uses less digits than its factorization.

202021000111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527274277.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 202021000111010 its reverse (10111000120202), we get a palindrome (212132000231212).

The spelling of 202021000111010 in words is "two hundred two trillion, twenty-one billion, one hundred eleven thousand, ten".