20201021222102 has 32 divisors (see below), whose sum is σ = 36819546857280. Its totient is φ = 8114500638720.

The previous prime is 20201021222099. The next prime is 20201021222141. The reversal of 20201021222102 is 20122212010202.

It is a happy number.

It is a super-2 number, since 2×20201021222102² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 176038577 + ... + 176153292.

It is an arithmetic number, because the mean of its divisors is an integer number (1150610839290).

Almost surely, 2^{20201021222102} is an apocalyptic number.

20201021222102 is a deficient number, since it is larger than the sum of its proper divisors (16618525635178).

20201021222102 is a wasteful number, since it uses less digits than its factorization.

20201021222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352192136.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20201021222102 its reverse (20122212010202), we get a palindrome (40323233232304).

The spelling of 20201021222102 in words is "twenty trillion, two hundred one billion, twenty-one million, two hundred twenty-two thousand, one hundred two".