122002012201021 has 8 divisors (see below), whose sum is σ = 122168351439288. Its totient is φ = 121835688768000.

The previous prime is 122002012201019. The next prime is 122002012201037. The reversal of 122002012201021 is 120102210200221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 711129591225 + 121290882609796 = 843285^2 + 11013214^2 .

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 122002012201021 - 2¹ = 122002012201019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122002012200986 and 122002012201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002012261021) 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, 11538741 + ... + 19420261.

It is an arithmetic number, because the mean of its divisors is an integer number (15271043929911).

Almost surely, 2^{122002012201021} is an apocalyptic number.

It is an amenable number.

122002012201021 is a deficient number, since it is larger than the sum of its proper divisors (166339238267).

122002012201021 is an equidigital number, since it uses as much as digits as its factorization.

122002012201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7902623.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122002012201021 its reverse (120102210200221), we get a palindrome (242104222401242).

The spelling of 122002012201021 in words is "one hundred twenty-two trillion, two billion, twelve million, two hundred one thousand, twenty-one".