212001221012131 has 2 divisors, whose sum is σ = 212001221012132. Its totient is φ = 212001221012130.

The previous prime is 212001221012107. The next prime is 212001221012143. The reversal of 212001221012131 is 131210122100212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212001221012131 - 2⁵ = 212001221012099 is a prime.

It is a super-2 number, since 2×212001221012131² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212001221012099 and 212001221012108.

It is not a weakly prime, because it can be changed into another prime (212001221012171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000610506065 + 106000610506066.

It is an arithmetic number, because the mean of its divisors is an integer number (106000610506066).

Almost surely, 2^{212001221012131} is an apocalyptic number.

212001221012131 is a deficient number, since it is larger than the sum of its proper divisors (1).

212001221012131 is an equidigital number, since it uses as much as digits as its factorization.

212001221012131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 212001221012131 its reverse (131210122100212), we get a palindrome (343211343112343).

The spelling of 212001221012131 in words is "two hundred twelve trillion, one billion, two hundred twenty-one million, twelve thousand, one hundred thirty-one".