20021101202122 has 32 divisors (see below), whose sum is σ = 31051793677824. Its totient is φ = 9671576678400.

The previous prime is 20021101202027. The next prime is 20021101202131. The reversal of 20021101202122 is 22120210112002.

It is a happy number.

It is a super-2 number, since 2×20021101202122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20021101202096 and 20021101202105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585104358 + ... + 585138574.

It is an arithmetic number, because the mean of its divisors is an integer number (970368552432).

Almost surely, 2^{20021101202122} is an apocalyptic number.

20021101202122 is a deficient number, since it is larger than the sum of its proper divisors (11030692475702).

20021101202122 is a wasteful number, since it uses less digits than its factorization.

20021101202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49614.

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

Adding to 20021101202122 its reverse (22120210112002), we get a palindrome (42141311314124).

The spelling of 20021101202122 in words is "twenty trillion, twenty-one billion, one hundred one million, two hundred two thousand, one hundred twenty-two".