122021021220011 has 4 divisors (see below), whose sum is σ = 122097427621872. Its totient is φ = 121944614818152.

The previous prime is 122021021219957. The next prime is 122021021220029. The reversal of 122021021220011 is 110022120120221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122021021220011 - 2⁴² = 117622974708907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122021021229011) 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, 38203198535 + ... + 38203201728.

It is an arithmetic number, because the mean of its divisors is an integer number (30524356905468).

Almost surely, 2^{122021021220011} is an apocalyptic number.

122021021220011 is a deficient number, since it is larger than the sum of its proper divisors (76406401861).

122021021220011 is an equidigital number, since it uses as much as digits as its factorization.

122021021220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76406401860.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122021021220011 its reverse (110022120120221), we get a palindrome (232043141340232).

The spelling of 122021021220011 in words is "one hundred twenty-two trillion, twenty-one billion, twenty-one million, two hundred twenty thousand, eleven".