2011210212222 has 24 divisors (see below), whose sum is σ = 4359876533064. Its totient is φ = 670056572304.

The previous prime is 2011210212181. The next prime is 2011210212229. The reversal of 2011210212222 is 2222120121102.

It is a happy number.

2011210212222 is a `hidden beast` number, since 20 + 1 + 1 + 210 + 212 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2011210212195 and 2011210212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011210212229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28866888 + ... + 28936475.

It is an arithmetic number, because the mean of its divisors is an integer number (181661522211).

Almost surely, 2^{2011210212222} is an apocalyptic number.

2011210212222 is an abundant number, since it is smaller than the sum of its proper divisors (2348666320842).

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

2011210212222 is a wasteful number, since it uses less digits than its factorization.

2011210212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57805304 (or 57805301 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2011210212222 its reverse (2222120121102), we get a palindrome (4233330333324).

The spelling of 2011210212222 in words is "two trillion, eleven billion, two hundred ten million, two hundred twelve thousand, two hundred twenty-two".