211402010122131 has 4 divisors (see below), whose sum is σ = 281869346829512. Its totient is φ = 140934673414752.

The previous prime is 211402010122111. The next prime is 211402010122229. The reversal of 211402010122131 is 131221010204112.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 211402010122131 - 2⁹ = 211402010121619 is a prime.

It is a super-2 number, since 2×211402010122131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211402010122098 and 211402010122107.

It is not an unprimeable number, because it can be changed into a prime (211402010122111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35233668353686 + ... + 35233668353691.

It is an arithmetic number, because the mean of its divisors is an integer number (70467336707378).

Almost surely, 2^{211402010122131} is an apocalyptic number.

211402010122131 is a deficient number, since it is larger than the sum of its proper divisors (70467336707381).

211402010122131 is an equidigital number, since it uses as much as digits as its factorization.

211402010122131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70467336707380.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 211402010122131 its reverse (131221010204112), we get a palindrome (342623020326243).

The spelling of 211402010122131 in words is "two hundred eleven trillion, four hundred two billion, ten million, one hundred twenty-two thousand, one hundred thirty-one".