10120221211111 has 16 divisors (see below), whose sum is σ = 11151606475296. Its totient is φ = 9107430400000.

The previous prime is 10120221211073. The next prime is 10120221211123. The reversal of 10120221211111 is 11111212202101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10120221211111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120221214111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5207871 + ... + 6882031.

It is an arithmetic number, because the mean of its divisors is an integer number (696975404706).

Almost surely, 2^{10120221211111} is an apocalyptic number.

10120221211111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10120221211111 is a deficient number, since it is larger than the sum of its proper divisors (1031385264185).

10120221211111 is a wasteful number, since it uses less digits than its factorization.

10120221211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679714.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 10120221211111 its reverse (11111212202101), we get a palindrome (21231433413212).

The spelling of 10120221211111 in words is "ten trillion, one hundred twenty billion, two hundred twenty-one million, two hundred eleven thousand, one hundred eleven".