20010002122 has 32 divisors (see below), whose sum is σ = 33457432320. Its totient is φ = 8897378880.

The previous prime is 20010002113. The next prime is 20010002123. The reversal of 20010002122 is 22120001002.

It is a junction number, because it is equal to n+sod(n) for n = 20010002099 and 20010002108.

It is not an unprimeable number, because it can be changed into a prime (20010002123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2764404 + ... + 2771632.

It is an arithmetic number, because the mean of its divisors is an integer number (1045544760).

Almost surely, 2^20010002122 is an apocalyptic number.

20010002122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20010002122 is a deficient number, since it is larger than the sum of its proper divisors (13447430198).

20010002122 is a wasteful number, since it uses less digits than its factorization.

20010002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9966.

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

Adding to 20010002122 its reverse (22120001002), we get a palindrome (42130003124).

The spelling of 20010002122 in words is "twenty billion, ten million, two thousand, one hundred twenty-two".