202122011121971 has 2 divisors, whose sum is σ = 202122011121972. Its totient is φ = 202122011121970.

The previous prime is 202122011121967. The next prime is 202122011122001. The reversal of 202122011121971 is 179121110221202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202122011121971 - 2² = 202122011121967 is a prime.

It is not a weakly prime, because it can be changed into another prime (202122011121941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101061005560985 + 101061005560986.

It is an arithmetic number, because the mean of its divisors is an integer number (101061005560986).

Almost surely, 2^{202122011121971} is an apocalyptic number.

202122011121971 is a deficient number, since it is larger than the sum of its proper divisors (1).

202122011121971 is an equidigital number, since it uses as much as digits as its factorization.

202122011121971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 32.

The spelling of 202122011121971 in words is "two hundred two trillion, one hundred twenty-two billion, eleven million, one hundred twenty-one thousand, nine hundred seventy-one".