202221111220010 has 16 divisors (see below), whose sum is σ = 385409647266696. Its totient is φ = 76130300694528.

The previous prime is 202221111219997. The next prime is 202221111220081. The reversal of 202221111220010 is 10022111122202.

It can be written as a sum of positive squares in 4 ways, for example, as 124300892238961 + 77920218981049 = 11149031^2 + 8827243^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594767974007 + ... + 594767974346.

Almost surely, 2^{202221111220010} is an apocalyptic number.

202221111220010 is a deficient number, since it is larger than the sum of its proper divisors (183188536046686).

202221111220010 is a wasteful number, since it uses less digits than its factorization.

202221111220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189535948377.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202221111220010 its reverse (10022111122202), we get a palindrome (212243222342212).

The spelling of 202221111220010 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred eleven million, two hundred twenty thousand, ten".