20100122212010 has 16 divisors (see below), whose sum is σ = 36538439983272. Its totient is φ = 7960444440000.

The previous prime is 20100122211997. The next prime is 20100122212019. The reversal of 20100122212010 is 1021222100102.

It can be written as a sum of positive squares in 4 ways, for example, as 15875786020249 + 4224336191761 = 3984443^2 + 2055319^2 .

It is not an unprimeable number, because it can be changed into a prime (20100122212019) 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, 9950554541 + ... + 9950556560.

Almost surely, 2^{20100122212010} is an apocalyptic number.

20100122212010 is a deficient number, since it is larger than the sum of its proper divisors (16438317771262).

20100122212010 is a wasteful number, since it uses less digits than its factorization.

20100122212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19901111209.

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

Adding to 20100122212010 its reverse (1021222100102), we get a palindrome (21121344312112).

The spelling of 20100122212010 in words is "twenty trillion, one hundred billion, one hundred twenty-two million, two hundred twelve thousand, ten".