20021100011222 has 16 divisors (see below), whose sum is σ = 31836575028960. Its totient is φ = 9410328978048.

The previous prime is 20021100011201. The next prime is 20021100011233. The reversal of 20021100011222 is 22211000112002.

It is a junction number, because it is equal to n+sod(n) for n = 20021100011197 and 20021100011206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355132178 + ... + 355188549.

It is an arithmetic number, because the mean of its divisors is an integer number (1989785939310).

Almost surely, 2^{20021100011222} is an apocalyptic number.

20021100011222 is a deficient number, since it is larger than the sum of its proper divisors (11815475017738).

20021100011222 is a wasteful number, since it uses less digits than its factorization.

20021100011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710321575.

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

Adding to 20021100011222 its reverse (22211000112002), we get a palindrome (42232100123224).

The spelling of 20021100011222 in words is "twenty trillion, twenty-one billion, one hundred million, eleven thousand, two hundred twenty-two".