1020200221101 has 32 divisors (see below), whose sum is σ = 1512750182400. Its totient is φ = 608881855680.

The previous prime is 1020200221069. The next prime is 1020200221127. The reversal of 1020200221101 is 1011220020201.

It is not a de Polignac number, because 1020200221101 - 2⁵ = 1020200221069 is a prime.

It is a super-2 number, since 2×1020200221101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020200221171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6488065 + ... + 6643446.

It is an arithmetic number, because the mean of its divisors is an integer number (47273443200).

Almost surely, 2^{1020200221101} is an apocalyptic number.

It is an amenable number.

1020200221101 is a deficient number, since it is larger than the sum of its proper divisors (492549961299).

1020200221101 is a wasteful number, since it uses less digits than its factorization.

1020200221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13131609.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020200221101 its reverse (1011220020201), we get a palindrome (2031420241302).

The spelling of 1020200221101 in words is "one trillion, twenty billion, two hundred million, two hundred twenty-one thousand, one hundred one".