20021010101106 has 64 divisors (see below), whose sum is σ = 46560123889920. Its totient is φ = 5620753704960.

The previous prime is 20021010101101. The next prime is 20021010101149. The reversal of 20021010101106 is 60110101012002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20021010101101) 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, 1496211 + ... + 6502358.

It is an arithmetic number, because the mean of its divisors is an integer number (727501935780).

Almost surely, 2^{20021010101106} is an apocalyptic number.

20021010101106 is an abundant number, since it is smaller than the sum of its proper divisors (26539113788814).

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

20021010101106 is a wasteful number, since it uses less digits than its factorization.

20021010101106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7999619.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 20021010101106 its reverse (60110101012002), we get a palindrome (80131111113108).

The spelling of 20021010101106 in words is "twenty trillion, twenty-one billion, ten million, one hundred one thousand, one hundred six".