122002211021020 has 96 divisors (see below), whose sum is σ = 280685139840000. Its totient is φ = 44175710073600.

The previous prime is 122002211020979. The next prime is 122002211021027. The reversal of 122002211021020 is 20120112200221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122002211020985 and 122002211021003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002211021027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 828008755 + ... + 828156085.

It is an arithmetic number, because the mean of its divisors is an integer number (2923803540000).

Almost surely, 2^{122002211021020} is an apocalyptic number.

122002211021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122002211021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140342569920000).

122002211021020 is an abundant number, since it is smaller than the sum of its proper divisors (158682928818980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122002211021020 is a wasteful number, since it uses less digits than its factorization.

122002211021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163339 (or 163337 counting only the distinct ones).

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

Adding to 122002211021020 its reverse (20120112200221), we get a palindrome (142122323221241).

The spelling of 122002211021020 in words is "one hundred twenty-two trillion, two billion, two hundred eleven million, twenty-one thousand, twenty".