1002212111 has 4 divisors (see below), whose sum is σ = 1002392424. Its totient is φ = 1002031800.

The previous prime is 1002212093. The next prime is 1002212119. The reversal of 1002212111 is 1112122001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002212111 - 2⁶ = 1002212047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002212092 and 1002212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002212119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81545 + ... + 93026.

It is an arithmetic number, because the mean of its divisors is an integer number (250598106).

Almost surely, 2^1002212111 is an apocalyptic number.

1002212111 is a deficient number, since it is larger than the sum of its proper divisors (180313).

1002212111 is an equidigital number, since it uses as much as digits as its factorization.

1002212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180312.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1002212111 is about 31657.7338260337. The cubic root of 1002212111 is about 1000.7368272855.

Adding to 1002212111 its reverse (1112122001), we get a palindrome (2114334112).

The spelling of 1002212111 in words is "one billion, two million, two hundred twelve thousand, one hundred eleven".