20011021112202 has 16 divisors (see below), whose sum is σ = 40054928058432. Its totient is φ = 6664859398400.

The previous prime is 20011021112197. The next prime is 20011021112207. The reversal of 20011021112202 is 20221112011002.

It is an interprime number because it is at equal distance from previous prime (20011021112197) and next prime (20011021112207).

It is not an unprimeable number, because it can be changed into a prime (20011021112207) 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, 1370235174 + ... + 1370249777.

It is an arithmetic number, because the mean of its divisors is an integer number (2503433003652).

Almost surely, 2^{20011021112202} is an apocalyptic number.

20011021112202 is an abundant number, since it is smaller than the sum of its proper divisors (20043906946230).

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

20011021112202 is a wasteful number, since it uses less digits than its factorization.

20011021112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740486173.

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

Adding to 20011021112202 its reverse (20221112011002), we get a palindrome (40232133123204).

The spelling of 20011021112202 in words is "twenty trillion, eleven billion, twenty-one million, one hundred twelve thousand, two hundred two".