212220312003131 has 4 divisors (see below), whose sum is σ = 212749539714264. Its totient is φ = 211691084292000.

The previous prime is 212220312003103. The next prime is 212220312003173. The reversal of 212220312003131 is 131300213022212.

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

It is a cyclic number.

It is not a de Polignac number, because 212220312003131 - 2³⁴ = 212203132133947 is a prime.

It is a super-2 number, since 2×212220312003131² (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 = 212220312003097 and 212220312003106.

It is not an unprimeable number, because it can be changed into a prime (212220312003631) 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, 264613854965 + ... + 264613855766.

It is an arithmetic number, because the mean of its divisors is an integer number (53187384928566).

Almost surely, 2^{212220312003131} is an apocalyptic number.

212220312003131 is a deficient number, since it is larger than the sum of its proper divisors (529227711133).

212220312003131 is an equidigital number, since it uses as much as digits as its factorization.

212220312003131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529227711132.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 212220312003131 its reverse (131300213022212), we get a palindrome (343520525025343).

The spelling of 212220312003131 in words is "two hundred twelve trillion, two hundred twenty billion, three hundred twelve million, three thousand, one hundred thirty-one".