101220120020011 has 16 divisors (see below), whose sum is σ = 102024327420288. Its totient is φ = 100418792947200.

The previous prime is 101220120020009. The next prime is 101220120020059. The reversal of 101220120020011 is 110020021022101.

It is a cyclic number.

It is not a de Polignac number, because 101220120020011 - 2¹ = 101220120020009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101220120019973 and 101220120020000.

It is not an unprimeable number, because it can be changed into a prime (101220120020711) 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, 194282815 + ... + 194803111.

It is an arithmetic number, because the mean of its divisors is an integer number (6376520463768).

Almost surely, 2^{101220120020011} is an apocalyptic number.

101220120020011 is a deficient number, since it is larger than the sum of its proper divisors (804207400277).

101220120020011 is a wasteful number, since it uses less digits than its factorization.

101220120020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523062.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101220120020011 its reverse (110020021022101), we get a palindrome (211240141042112).

The spelling of 101220120020011 in words is "one hundred one trillion, two hundred twenty billion, one hundred twenty million, twenty thousand, eleven".