2112111010 has 16 divisors (see below), whose sum is σ = 3814780536. Its totient is φ = 841959808.

The previous prime is 2112110993. The next prime is 2112111011. The reversal of 2112111010 is 101112112.

It can be written as a sum of positive squares in 4 ways, for example, as 1656245809 + 455865201 = 40697^2 + 21351^2 .

It is a super-2 number, since 2×2112111010² = 8922025837126440200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2112111011) 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, 357499 + ... + 363358.

Almost surely, 2^2112111010 is an apocalyptic number.

2112111010 is a deficient number, since it is larger than the sum of its proper divisors (1702669526).

2112111010 is a wasteful number, since it uses less digits than its factorization.

2112111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721157.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 2112111010 is about 45957.7089289708. The cubic root of 2112111010 is about 1283.0362106693.

Adding to 2112111010 its reverse (101112112), we get a palindrome (2213223122).

It can be divided in two parts, 21121 and 11010, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 2112111010 in words is "two billion, one hundred twelve million, one hundred eleven thousand, ten".