2101230221031 has 24 divisors (see below), whose sum is σ = 3226827722976. Its totient is φ = 1314633503040.

The previous prime is 2101230221029. The next prime is 2101230221059. The reversal of 2101230221031 is 1301220321012.

2101230221031 is a `hidden beast` number, since 210 + 1 + 230 + 221 + 0 + 3 + 1 = 666.

It is not a de Polignac number, because 2101230221031 - 2¹ = 2101230221029 is a prime.

It is a super-2 number, since 2×2101230221031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2101230220995 and 2101230221013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101230221081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95751960 + ... + 95773901.

It is an arithmetic number, because the mean of its divisors is an integer number (134451155124).

Almost surely, 2^{2101230221031} is an apocalyptic number.

2101230221031 is a deficient number, since it is larger than the sum of its proper divisors (1125597501945).

2101230221031 is a wasteful number, since it uses less digits than its factorization.

2101230221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191525943 (or 191525940 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2101230221031 its reverse (1301220321012), we get a palindrome (3402450542043).

The spelling of 2101230221031 in words is "two trillion, one hundred one billion, two hundred thirty million, two hundred twenty-one thousand, thirty-one".