122001011101021 has 16 divisors (see below), whose sum is σ = 132075574839040. Its totient is φ = 112025080857600.

The previous prime is 122001011101009. The next prime is 122001011101027. The reversal of 122001011101021 is 120101110100221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122001011101021 - 2³⁷ = 121863572147549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122001011100992 and 122001011101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001011101027) 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, 34837600 + ... + 38179318.

It is an arithmetic number, because the mean of its divisors is an integer number (8254723427440).

Almost surely, 2^{122001011101021} is an apocalyptic number.

It is an amenable number.

122001011101021 is a deficient number, since it is larger than the sum of its proper divisors (10074563738019).

122001011101021 is a wasteful number, since it uses less digits than its factorization.

122001011101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356476.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 122001011101021 its reverse (120101110100221), we get a palindrome (242102121201242).

The spelling of 122001011101021 in words is "one hundred twenty-two trillion, one billion, eleven million, one hundred one thousand, twenty-one".