2111121001006 has 4 divisors (see below), whose sum is σ = 3166681501512. Its totient is φ = 1055560500502.

The previous prime is 2111121000983. The next prime is 2111121001037. The reversal of 2111121001006 is 6001001211112.

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

It is a super-3 number, since 3×2111121001006³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527780250250 + ... + 527780250253.

It is an arithmetic number, because the mean of its divisors is an integer number (791670375378).

Almost surely, 2^{2111121001006} is an apocalyptic number.

2111121001006 is a deficient number, since it is larger than the sum of its proper divisors (1055560500506).

2111121001006 is a wasteful number, since it uses less digits than its factorization.

2111121001006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055560500505.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 2111121001006 its reverse (6001001211112), we get a palindrome (8112122212118).

The spelling of 2111121001006 in words is "two trillion, one hundred eleven billion, one hundred twenty-one million, one thousand, six".