21220120202119 has 2 divisors, whose sum is σ = 21220120202120. Its totient is φ = 21220120202118.

The previous prime is 21220120202023. The next prime is 21220120202123. The reversal of 21220120202119 is 91120202102212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21220120202119 - 2²¹ = 21220118104967 is a prime.

It is a super-2 number, since 2×21220120202119² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21220120202093 and 21220120202102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21220120202189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610060101059 + 10610060101060.

It is an arithmetic number, because the mean of its divisors is an integer number (10610060101060).

Almost surely, 2^{21220120202119} is an apocalyptic number.

21220120202119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220120202119 is an equidigital number, since it uses as much as digits as its factorization.

21220120202119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 21220120202119 in words is "twenty-one trillion, two hundred twenty billion, one hundred twenty million, two hundred two thousand, one hundred nineteen".