122002000001020 has 48 divisors (see below), whose sum is σ = 256744247961600. Its totient is φ = 48697937837120.

The previous prime is 122002000000987. The next prime is 122002000001113. The reversal of 122002000001020 is 20100000200221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 122002000000988 and 122002000001006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643786641 + ... + 643976119.

It is an arithmetic number, because the mean of its divisors is an integer number (5348838499200).

Almost surely, 2^{122002000001020} is an apocalyptic number.

122002000001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122002000001020 is an abundant number, since it is smaller than the sum of its proper divisors (134742247960580).

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

122002000001020 is a wasteful number, since it uses less digits than its factorization.

122002000001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257178 (or 257176 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 122002000001020 its reverse (20100000200221), we get a palindrome (142102000201241).

The spelling of 122002000001020 in words is "one hundred twenty-two trillion, two billion, one thousand, twenty".