20021302222141 has 12 divisors (see below), whose sum is σ = 22007266703100. Its totient is φ = 18200868899840.

The previous prime is 20021302222063. The next prime is 20021302222157. The reversal of 20021302222141 is 14122220312002.

It can be written as a sum of positive squares in 2 ways, for example, as 7431784776900 + 12589517445241 = 2726130^2 + 3548171^2 .

It is not a de Polignac number, because 20021302222141 - 2⁹ = 20021302221629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021302228141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5738055 + ... + 8542123.

It is an arithmetic number, because the mean of its divisors is an integer number (1833938891925).

Almost surely, 2^{20021302222141} is an apocalyptic number.

It is an amenable number.

20021302222141 is a deficient number, since it is larger than the sum of its proper divisors (1985964480959).

20021302222141 is a wasteful number, since it uses less digits than its factorization.

20021302222141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863100 (or 2863089 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20021302222141 its reverse (14122220312002), we get a palindrome (34143522534143).

The spelling of 20021302222141 in words is "twenty trillion, twenty-one billion, three hundred two million, two hundred twenty-two thousand, one hundred forty-one".