20021012220102 has 32 divisors (see below), whose sum is σ = 41070779858304. Its totient is φ = 6502625160000.

The previous prime is 20021012220091. The next prime is 20021012220137. The reversal of 20021012220102 is 20102221012002.

It is a super-2 number, since 2×20021012220102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 51513024 + ... + 51900227.

It is an arithmetic number, because the mean of its divisors is an integer number (1283461870572).

Almost surely, 2^{20021012220102} is an apocalyptic number.

20021012220102 is an abundant number, since it is smaller than the sum of its proper divisors (21049767638202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021012220102 is a wasteful number, since it uses less digits than its factorization.

20021012220102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103414084.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20021012220102 its reverse (20102221012002), we get a palindrome (40123233232104).

The spelling of 20021012220102 in words is "twenty trillion, twenty-one billion, twelve million, two hundred twenty thousand, one hundred two".