21020220101102 has 8 divisors (see below), whose sum is σ = 31531589576136. Its totient is φ = 10509690242392.

The previous prime is 21020220101087. The next prime is 21020220101107. The reversal of 21020220101102 is 20110102202012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×21020220101102³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020220101107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209841488 + ... + 209941635.

It is an arithmetic number, because the mean of its divisors is an integer number (3941448697017).

Almost surely, 2^{21020220101102} is an apocalyptic number.

21020220101102 is a deficient number, since it is larger than the sum of its proper divisors (10511369475034).

21020220101102 is a wasteful number, since it uses less digits than its factorization.

21020220101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419808162.

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

Adding to 21020220101102 its reverse (20110102202012), we get a palindrome (41130322303114).

The spelling of 21020220101102 in words is "twenty-one trillion, twenty billion, two hundred twenty million, one hundred one thousand, one hundred two".