122002101110021 has 4 divisors (see below), whose sum is σ = 133093201210944. Its totient is φ = 110911001009100.

The previous prime is 122002101110017. The next prime is 122002101110053. The reversal of 122002101110021 is 120011101200221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122002101110021 - 2² = 122002101110017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122002101109978 and 122002101110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002101010021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5545550050445 + ... + 5545550050466.

It is an arithmetic number, because the mean of its divisors is an integer number (33273300302736).

Almost surely, 2^{122002101110021} is an apocalyptic number.

122002101110021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122002101110021 is a deficient number, since it is larger than the sum of its proper divisors (11091100100923).

122002101110021 is a wasteful number, since it uses less digits than its factorization.

122002101110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11091100100922.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122002101110021 its reverse (120011101200221), we get a palindrome (242013202310242).

The spelling of 122002101110021 in words is "one hundred twenty-two trillion, two billion, one hundred one million, one hundred ten thousand, twenty-one".