2211012 has 18 divisors (see below), whose sum is σ = 5589038. Its totient is φ = 736992.

The previous prime is 2210993. The next prime is 2211019. The reversal of 2211012 is 2101122.

It can be written as a sum of positive squares in only one way, i.e., 1726596 + 484416 = 1314^2 + 696^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2210985 and 2211003.

It is not an unprimeable number, because it can be changed into a prime (2211019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30673 + ... + 30744.

2^2211012 is an apocalyptic number.

It is an amenable number.

2211012 is an abundant number, since it is smaller than the sum of its proper divisors (3378026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211012 is a wasteful number, since it uses less digits than its factorization.

2211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61427 (or 61422 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2211012 is about 1486.9472082088. The cubic root of 2211012 is about 130.2757853369.

Adding to 2211012 its reverse (2101122), we get a palindrome (4312134).

It can be divided in two parts, 22110 and 12, that added together give a palindrome (22122).

The spelling of 2211012 in words is "two million, two hundred eleven thousand, twelve".