2101202122210 has 16 divisors (see below), whose sum is σ = 3816862572600. Its totient is φ = 832770014976.

The previous prime is 2101202122181. The next prime is 2101202122213. The reversal of 2101202122210 is 122212021012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1861966682521 + 239235439689 = 1364539^2 + 489117^2 .

It is not an unprimeable number, because it can be changed into a prime (2101202122213) 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, 963853095 + ... + 963855274.

Almost surely, 2^{2101202122210} is an apocalyptic number.

2101202122210 is a deficient number, since it is larger than the sum of its proper divisors (1715660450390).

2101202122210 is a wasteful number, since it uses less digits than its factorization.

2101202122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927708485.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2101202122210 its reverse (122212021012), we get a palindrome (2223414143222).

The spelling of 2101202122210 in words is "two trillion, one hundred one billion, two hundred two million, one hundred twenty-two thousand, two hundred ten".