102211020011 has 4 divisors (see below), whose sum is σ = 107590547400. Its totient is φ = 96831492624.

The previous prime is 102211019959. The next prime is 102211020029. The reversal of 102211020011 is 110020112201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110020112201 = 461 ⋅238655341.

It is a cyclic number.

It is not a de Polignac number, because 102211020011 - 2²⁶ = 102143911147 is a prime.

It is a super-2 number, since 2×102211020011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102211019974 and 102211020001.

It is not an unprimeable number, because it can be changed into a prime (102211020091) 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, 2689763666 + ... + 2689763703.

It is an arithmetic number, because the mean of its divisors is an integer number (26897636850).

Almost surely, 2^102211020011 is an apocalyptic number.

102211020011 is a deficient number, since it is larger than the sum of its proper divisors (5379527389).

102211020011 is an equidigital number, since it uses as much as digits as its factorization.

102211020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5379527388.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102211020011 its reverse (110020112201), we get a palindrome (212231132212).

The spelling of 102211020011 in words is "one hundred two billion, two hundred eleven million, twenty thousand, eleven".