20010101222122 has 32 divisors (see below), whose sum is σ = 33875089159680. Its totient is φ = 8781294688320.

The previous prime is 20010101222113. The next prime is 20010101222131. The reversal of 20010101222122 is 22122210101002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20010101222113) and next prime (20010101222131).

It is a junction number, because it is equal to n+sod(n) for n = 20010101222096 and 20010101222105.

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, 8935608 + ... + 10948300.

It is an arithmetic number, because the mean of its divisors is an integer number (1058596536240).

Almost surely, 2^{20010101222122} is an apocalyptic number.

20010101222122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20010101222122 is a deficient number, since it is larger than the sum of its proper divisors (13864987937558).

20010101222122 is a wasteful number, since it uses less digits than its factorization.

20010101222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028318.

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

Adding to 20010101222122 its reverse (22122210101002), we get a palindrome (42132311323124).

The spelling of 20010101222122 in words is "twenty trillion, ten billion, one hundred one million, two hundred twenty-two thousand, one hundred twenty-two".