31220130100211 has 8 divisors (see below), whose sum is σ = 33807433702224. Its totient is φ = 28659362945760.

The previous prime is 31220130100153. The next prime is 31220130100273. The reversal of 31220130100211 is 11200103102213.

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

It is a cyclic number.

It is not a de Polignac number, because 31220130100211 - 2¹⁰ = 31220130099187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31220130100211.

It is not an unprimeable number, because it can be changed into a prime (31220130100711) 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, 6634109441 + ... + 6634114146.

It is an arithmetic number, because the mean of its divisors is an integer number (4225929212778).

Almost surely, 2^{31220130100211} is an apocalyptic number.

31220130100211 is a deficient number, since it is larger than the sum of its proper divisors (2587303602013).

31220130100211 is a wasteful number, since it uses less digits than its factorization.

31220130100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13268223781.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31220130100211 its reverse (11200103102213), we get a palindrome (42420233202424).

The spelling of 31220130100211 in words is "thirty-one trillion, two hundred twenty billion, one hundred thirty million, one hundred thousand, two hundred eleven".