122221010001020 has 192 divisors, whose sum is σ = 295216613314560. Its totient is φ = 41635742819328.

The previous prime is 122221010001001. The next prime is 122221010001137. The reversal of 122221010001020 is 20100010122221.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 122221010000986 and 122221010001004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 50152239242 + ... + 50152241678.

It is an arithmetic number, because the mean of its divisors is an integer number (1537586527680).

Almost surely, 2^{122221010001020} is an apocalyptic number.

122221010001020 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 122221010001020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147608306657280).

122221010001020 is an abundant number, since it is smaller than the sum of its proper divisors (172995603313540).

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

122221010001020 is a wasteful number, since it uses less digits than its factorization.

122221010001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212 (or 5210 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122221010001020 its reverse (20100010122221), we get a palindrome (142321020123241).

The spelling of 122221010001020 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, ten million, one thousand, twenty".