20102221001223 has 32 divisors (see below), whose sum is σ = 29802001060800. Its totient is φ = 13392064240128.

The previous prime is 20102221001183. The next prime is 20102221001237. The reversal of 20102221001223 is 32210012220102.

It is not a de Polignac number, because 20102221001223 - 2²⁴ = 20102204224007 is a prime.

It is a super-2 number, since 2×20102221001223² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20102221001196 and 20102221001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102221001123) 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, 228086961 + ... + 228175077.

It is an arithmetic number, because the mean of its divisors is an integer number (931312533150).

Almost surely, 2^{20102221001223} is an apocalyptic number.

20102221001223 is a deficient number, since it is larger than the sum of its proper divisors (9699780059577).

20102221001223 is a wasteful number, since it uses less digits than its factorization.

20102221001223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93968 (or 93962 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20102221001223 its reverse (32210012220102), we get a palindrome (52312233221325).

The spelling of 20102221001223 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, one thousand, two hundred twenty-three".