102101222011 has 4 divisors (see below), whose sum is σ = 102287879272. Its totient is φ = 101914564752.

The previous prime is 102101221991. The next prime is 102101222023. The reversal of 102101222011 is 110222101201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110222101201 = 19181 ⋅5746421.

It is a cyclic number.

It is not a de Polignac number, because 102101222011 - 2⁹ = 102101221499 is a prime.

It is a super-2 number, since 2×102101222011² (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 = 102101221982 and 102101222000.

It is not an unprimeable number, because it can be changed into a prime (102101222071) 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, 93327810 + ... + 93328903.

It is an arithmetic number, because the mean of its divisors is an integer number (25571969818).

Almost surely, 2^102101222011 is an apocalyptic number.

102101222011 is a deficient number, since it is larger than the sum of its proper divisors (186657261).

102101222011 is an equidigital number, since it uses as much as digits as its factorization.

102101222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186657260.

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

Adding to 102101222011 its reverse (110222101201), we get a palindrome (212323323212).

The spelling of 102101222011 in words is "one hundred two billion, one hundred one million, two hundred twenty-two thousand, eleven".