2111222000 has 40 divisors (see below), whose sum is σ = 5104939632. Its totient is φ = 844488000.

The previous prime is 2111221969. The next prime is 2111222023. The reversal of 2111222000 is 2221112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525806 + ... + 529805.

Almost surely, 2^2111222000 is an apocalyptic number.

2111222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111222000 is an abundant number, since it is smaller than the sum of its proper divisors (2993717632).

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

2111222000 is a wasteful number, since it uses less digits than its factorization.

2111222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055634 (or 1055618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2111222000 is about 45948.0358666178. The cubic root of 2111222000 is about 1282.8561708752.

Adding to 2111222000 its reverse (2221112), we get a palindrome (2113443112).

The spelling of 2111222000 in words is "two billion, one hundred eleven million, two hundred twenty-two thousand".