10001111220102 has 64 divisors (see below), whose sum is σ = 21785057409024. Its totient is φ = 3048054935040.

The previous prime is 10001111220091. The next prime is 10001111220103. The reversal of 10001111220102 is 20102211110001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001111220103) 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, 366027 + ... + 4487337.

It is an arithmetic number, because the mean of its divisors is an integer number (340391522016).

Almost surely, 2^{10001111220102} is an apocalyptic number.

10001111220102 is an abundant number, since it is smaller than the sum of its proper divisors (11783946188922).

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

10001111220102 is a wasteful number, since it uses less digits than its factorization.

10001111220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4122013.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10001111220102 its reverse (20102211110001), we get a palindrome (30103322330103).

The spelling of 10001111220102 in words is "ten trillion, one billion, one hundred eleven million, two hundred twenty thousand, one hundred two".