11012120022111 has 16 divisors (see below), whose sum is σ = 16028881413216. Its totient is φ = 6683857883136.

The previous prime is 11012120022103. The next prime is 11012120022121. The reversal of 11012120022111 is 11122002121011.

It is a happy number.

It is not a de Polignac number, because 11012120022111 - 2³ = 11012120022103 is a prime.

It is a super-2 number, since 2×11012120022111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012120022121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1933983810 + ... + 1933989503.

It is an arithmetic number, because the mean of its divisors is an integer number (1001805088326).

Almost surely, 2^{11012120022111} is an apocalyptic number.

11012120022111 is a deficient number, since it is larger than the sum of its proper divisors (5016761391105).

11012120022111 is a wasteful number, since it uses less digits than its factorization.

11012120022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867973402.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11012120022111 its reverse (11122002121011), we get a palindrome (22134122143122).

The spelling of 11012120022111 in words is "eleven trillion, twelve billion, one hundred twenty million, twenty-two thousand, one hundred eleven".