1020212221101 has 32 divisors (see below), whose sum is σ = 1429879418880. Its totient is φ = 646214635584.

The previous prime is 1020212221079. The next prime is 1020212221157. The reversal of 1020212221101 is 1011222120201.

1020212221101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020212221101 - 2¹¹ = 1020212219053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020212221901) 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, 21851340 + ... + 21897978.

It is an arithmetic number, because the mean of its divisors is an integer number (44683731840).

Almost surely, 2^{1020212221101} is an apocalyptic number.

It is an amenable number.

1020212221101 is a deficient number, since it is larger than the sum of its proper divisors (409667197779).

1020212221101 is a wasteful number, since it uses less digits than its factorization.

1020212221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51305.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1020212221101 its reverse (1011222120201), we get a palindrome (2031434341302).

The spelling of 1020212221101 in words is "one trillion, twenty billion, two hundred twelve million, two hundred twenty-one thousand, one hundred one".