20102221212093 has 16 divisors (see below), whose sum is σ = 30342975416640. Its totient is φ = 13148622678672.

The previous prime is 20102221212071. The next prime is 20102221212103. The reversal of 20102221212093 is 39021212220102.

It is not a de Polignac number, because 20102221212093 - 2¹³ = 20102221203901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102221212043) 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, 7023835471 + ... + 7023838332.

It is an arithmetic number, because the mean of its divisors is an integer number (1896435963540).

Almost surely, 2^{20102221212093} is an apocalyptic number.

It is an amenable number.

20102221212093 is a deficient number, since it is larger than the sum of its proper divisors (10240754204547).

20102221212093 is a wasteful number, since it uses less digits than its factorization.

20102221212093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14047673865 (or 14047673859 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 20102221212093 its reverse (39021212220102), we get a palindrome (59123433432195).

The spelling of 20102221212093 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, two hundred twelve thousand, ninety-three".