20101211210202 has 64 divisors (see below), whose sum is σ = 40832700825600. Its totient is φ = 6595722117504.

The previous prime is 20101211210141. The next prime is 20101211210207. The reversal of 20101211210202 is 20201211210102.

It is not an unprimeable number, because it can be changed into a prime (20101211210207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1170913023 + ... + 1170930189.

It is an arithmetic number, because the mean of its divisors is an integer number (638010950400).

Almost surely, 2^{20101211210202} is an apocalyptic number.

20101211210202 is an abundant number, since it is smaller than the sum of its proper divisors (20731489615398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20101211210202 is a wasteful number, since it uses less digits than its factorization.

20101211210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22307.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20101211210202 its reverse (20201211210102), we get a palindrome (40302422420304).

The spelling of 20101211210202 in words is "twenty trillion, one hundred one billion, two hundred eleven million, two hundred ten thousand, two hundred two".