1211010002111 has 12 divisors (see below), whose sum is σ = 1517089453992. Its totient is φ = 958161759408.

The previous prime is 1211010002093. The next prime is 1211010002219. The reversal of 1211010002111 is 1112000101121.

It is not a de Polignac number, because 1211010002111 - 2¹⁰ = 1211010001087 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211010002092 and 1211010002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211010002011) 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, 950556665 + ... + 950557938.

It is an arithmetic number, because the mean of its divisors is an integer number (126424121166).

Almost surely, 2^{1211010002111} is an apocalyptic number.

1211010002111 is a deficient number, since it is larger than the sum of its proper divisors (306079451881).

1211010002111 is a wasteful number, since it uses less digits than its factorization.

1211010002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901114630 (or 1901114623 counting only the distinct ones).

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

Adding to 1211010002111 its reverse (1112000101121), we get a palindrome (2323010103232).

The spelling of 1211010002111 in words is "one trillion, two hundred eleven billion, ten million, two thousand, one hundred eleven".