20100122012210 has 16 divisors (see below), whose sum is σ = 36185961715992. Its totient is φ = 8038772784000.

The previous prime is 20100122012209. The next prime is 20100122012213. The reversal of 20100122012210 is 1221022100102.

It can be written as a sum of positive squares in 4 ways, for example, as 20092295248249 + 7826763961 = 4482443^2 + 88469^2 .

It is not an unprimeable number, because it can be changed into a prime (20100122012213) 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, 159436451 + ... + 159562470.

Almost surely, 2^{20100122012210} is an apocalyptic number.

20100122012210 is a deficient number, since it is larger than the sum of its proper divisors (16085839703782).

20100122012210 is a wasteful number, since it uses less digits than its factorization.

20100122012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319005229.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20100122012210 its reverse (1221022100102), we get a palindrome (21321144112312).

The spelling of 20100122012210 in words is "twenty trillion, one hundred billion, one hundred twenty-two million, twelve thousand, two hundred ten".