111020111211201 has 16 divisors (see below), whose sum is σ = 149157441195840. Its totient is φ = 73448099279360.

The previous prime is 111020111211179. The next prime is 111020111211223. The reversal of 111020111211201 is 102112111020111.

It is an interprime number because it is at equal distance from previous prime (111020111211179) and next prime (111020111211223).

It is a cyclic number.

It is not a de Polignac number, because 111020111211201 - 2²¹ = 111020109114049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111020111251201) 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, 119225545 + ... + 120153113.

It is an arithmetic number, because the mean of its divisors is an integer number (9322340074740).

Almost surely, 2^{111020111211201} is an apocalyptic number.

It is an amenable number.

111020111211201 is a deficient number, since it is larger than the sum of its proper divisors (38137329984639).

111020111211201 is a wasteful number, since it uses less digits than its factorization.

111020111211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232256.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111020111211201 its reverse (102112111020111), we get a palindrome (213132222231312).

The spelling of 111020111211201 in words is "one hundred eleven trillion, twenty billion, one hundred eleven million, two hundred eleven thousand, two hundred one".