2101010021111 has 8 divisors (see below), whose sum is σ = 2117671979520. Its totient is φ = 2084349915648.

The previous prime is 2101010021069. The next prime is 2101010021179. The reversal of 2101010021111 is 1111200101012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2101010021111 - 2²² = 2101005826807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101010021092 and 2101010021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101010021911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1859495 + ... + 2767623.

It is an arithmetic number, because the mean of its divisors is an integer number (264708997440).

Almost surely, 2^{2101010021111} is an apocalyptic number.

2101010021111 is a deficient number, since it is larger than the sum of its proper divisors (16661958409).

2101010021111 is a wasteful number, since it uses less digits than its factorization.

2101010021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926473.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2101010021111 its reverse (1111200101012), we get a palindrome (3212210122123).

The spelling of 2101010021111 in words is "two trillion, one hundred one billion, ten million, twenty-one thousand, one hundred eleven".