221020010102011 has 8 divisors (see below), whose sum is σ = 221053302512640. Its totient is φ = 220986720205032.

The previous prime is 221020010101999. The next prime is 221020010102051. The reversal of 221020010102011 is 110201010020122.

221020010102011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221020010102011 - 2²³ = 221020001713403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221020010101982 and 221020010102000.

It is not an unprimeable number, because it can be changed into a prime (221020010102051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179090286 + ... + 180320188.

It is an arithmetic number, because the mean of its divisors is an integer number (27631662814080).

Almost surely, 2^{221020010102011} is an apocalyptic number.

221020010102011 is a deficient number, since it is larger than the sum of its proper divisors (33292410629).

221020010102011 is a wasteful number, since it uses less digits than its factorization.

221020010102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256825.

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

Adding to 221020010102011 its reverse (110201010020122), we get a palindrome (331221020122133).

The spelling of 221020010102011 in words is "two hundred twenty-one trillion, twenty billion, ten million, one hundred two thousand, eleven".