212020021121123 has 2 divisors, whose sum is σ = 212020021121124. Its totient is φ = 212020021121122.

The previous prime is 212020021121093. The next prime is 212020021121177. The reversal of 212020021121123 is 321121120020212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212020021121123 - 2¹² = 212020021117027 is a prime.

It is a super-2 number, since 2×212020021121123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212020021121095 and 212020021121104.

It is not a weakly prime, because it can be changed into another prime (212020021121323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010010560561 + 106010010560562.

It is an arithmetic number, because the mean of its divisors is an integer number (106010010560562).

Almost surely, 2^{212020021121123} is an apocalyptic number.

212020021121123 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020021121123 is an equidigital number, since it uses as much as digits as its factorization.

212020021121123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 212020021121123 its reverse (321121120020212), we get a palindrome (533141141141335).

The spelling of 212020021121123 in words is "two hundred twelve trillion, twenty billion, twenty-one million, one hundred twenty-one thousand, one hundred twenty-three".