122111211011 has 8 divisors (see below), whose sum is σ = 122913562464. Its totient is φ = 121310703360.

The previous prime is 122111211007. The next prime is 122111211023. The reversal of 122111211011 is 110112111221.

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 122111211011 - 2² = 122111211007 is a prime.

It is a super-2 number, since 2×122111211011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122111211311) 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, 327935 + ... + 593096.

It is an arithmetic number, because the mean of its divisors is an integer number (15364195308).

Almost surely, 2^122111211011 is an apocalyptic number.

122111211011 is a deficient number, since it is larger than the sum of its proper divisors (802351453).

122111211011 is an equidigital number, since it uses as much as digits as its factorization.

122111211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921901.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 122111211011 its reverse (110112111221), we get a palindrome (232223322232).

The spelling of 122111211011 in words is "one hundred twenty-two billion, one hundred eleven million, two hundred eleven thousand, eleven".