212221210111131 has 8 divisors (see below), whose sum is σ = 304727891441680. Its totient is φ = 130597667760672.

The previous prime is 212221210111129. The next prime is 212221210111193. The reversal of 212221210111131 is 131111012122212.

212221210111131 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212221210111131 - 2¹ = 212221210111129 is a prime.

It is a super-2 number, since 2×212221210111131² (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 = 212221210111098 and 212221210111107.

It is not an unprimeable number, because it can be changed into a prime (212221210116131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2720784744976 + ... + 2720784745053.

It is an arithmetic number, because the mean of its divisors is an integer number (38090986430210).

Almost surely, 2^{212221210111131} is an apocalyptic number.

212221210111131 is a deficient number, since it is larger than the sum of its proper divisors (92506681330549).

212221210111131 is a wasteful number, since it uses less digits than its factorization.

212221210111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5441569490045.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 212221210111131 its reverse (131111012122212), we get a palindrome (343332222233343).

The spelling of 212221210111131 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred ten million, one hundred eleven thousand, one hundred thirty-one".