101221121211202 has 16 divisors (see below), whose sum is σ = 152521056113400. Its totient is φ = 50381280390400.

The previous prime is 101221121211187. The next prime is 101221121211229. The reversal of 101221121211202 is 202112121122101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 64395023671801 + 36826097539401 = 8024651^2 + 6068451^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101221121211202.

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, 127407799 + ... + 128199802.

Almost surely, 2^{101221121211202} is an apocalyptic number.

101221121211202 is a deficient number, since it is larger than the sum of its proper divisors (51299934902198).

101221121211202 is a wasteful number, since it uses less digits than its factorization.

101221121211202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255608501.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 101221121211202 its reverse (202112121122101), we get a palindrome (303333242333303).

The spelling of 101221121211202 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred eleven thousand, two hundred two".