20100122220101 has 16 divisors (see below), whose sum is σ = 26378834357760. Its totient is φ = 14838094324080.

The previous prime is 20100122220091. The next prime is 20100122220133. The reversal of 20100122220101 is 10102222100102.

It is a cyclic number.

It is not a de Polignac number, because 20100122220101 - 2¹⁰ = 20100122219077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100122220151) 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, 6869486651 + ... + 6869489576.

It is an arithmetic number, because the mean of its divisors is an integer number (1648677147360).

Almost surely, 2^{20100122220101} is an apocalyptic number.

It is an amenable number.

20100122220101 is a deficient number, since it is larger than the sum of its proper divisors (6278712137659).

20100122220101 is a wasteful number, since it uses less digits than its factorization.

20100122220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13738976264.

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

Adding to 20100122220101 its reverse (10102222100102), we get a palindrome (30202344320203).

The spelling of 20100122220101 in words is "twenty trillion, one hundred billion, one hundred twenty-two million, two hundred twenty thousand, one hundred one".