20020221020101 has 24 divisors (see below), whose sum is σ = 21242232071424. Its totient is φ = 18856511237760.

The previous prime is 20020221020077. The next prime is 20020221020123. The reversal of 20020221020101 is 10102012202002.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20020221020101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020221020131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 437989290 + ... + 438034996.

It is an arithmetic number, because the mean of its divisors is an integer number (885093002976).

Almost surely, 2^{20020221020101} is an apocalyptic number.

It is an amenable number.

20020221020101 is a deficient number, since it is larger than the sum of its proper divisors (1222011051323).

20020221020101 is a wasteful number, since it uses less digits than its factorization.

20020221020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58509 (or 58480 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20020221020101 its reverse (10102012202002), we get a palindrome (30122233222103).

The spelling of 20020221020101 in words is "twenty trillion, twenty billion, two hundred twenty-one million, twenty thousand, one hundred one".