20220213929 has 2 divisors, whose sum is σ = 20220213930. Its totient is φ = 20220213928.

The previous prime is 20220213911. The next prime is 20220213943. The reversal of 20220213929 is 92931202202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16577850025 + 3642363904 = 128755^2 + 60352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20220213929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20220213895 and 20220213904.

It is not a weakly prime, because it can be changed into another prime (20220213989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110106964 + 10110106965.

It is an arithmetic number, because the mean of its divisors is an integer number (10110106965).

Almost surely, 2^20220213929 is an apocalyptic number.

It is an amenable number.

20220213929 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220213929 is an equidigital number, since it uses as much as digits as its factorization.

20220213929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 20220213929 in words is "twenty billion, two hundred twenty million, two hundred thirteen thousand, nine hundred twenty-nine".