100122110021011 has 4 divisors (see below), whose sum is σ = 107823810791872. Its totient is φ = 92420409250152.

The previous prime is 100122110020991. The next prime is 100122110021051. The reversal of 100122110021011 is 110120011221001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100122110021011 - 2²⁵ = 100122076466579 is a prime.

It is a super-2 number, since 2×100122110021011² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 7701700770847 = 100122110021011 / (1 + 0 + 0 + 1 + 2 + 2 + 1 + 1 + 0 + 0 + 2 + 1 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100122110020982 and 100122110021000.

It is not an unprimeable number, because it can be changed into a prime (100122110021051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3850850385411 + ... + 3850850385436.

It is an arithmetic number, because the mean of its divisors is an integer number (26955952697968).

Almost surely, 2^{100122110021011} is an apocalyptic number.

100122110021011 is a deficient number, since it is larger than the sum of its proper divisors (7701700770861).

100122110021011 is an equidigital number, since it uses as much as digits as its factorization.

100122110021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7701700770860.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100122110021011 its reverse (110120011221001), we get a palindrome (210242121242012).

The spelling of 100122110021011 in words is "one hundred trillion, one hundred twenty-two billion, one hundred ten million, twenty-one thousand, eleven".