1020212121201 has 64 divisors (see below), whose sum is σ = 1719798732288. Its totient is φ = 523481315328.

The previous prime is 1020212121167. The next prime is 1020212121221. The reversal of 1020212121201 is 1021212120201.

1020212121201 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 1020212121201 - 2⁹ = 1020212120689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020212121221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76488205 + ... + 76501541.

It is an arithmetic number, because the mean of its divisors is an integer number (26871855192).

Almost surely, 2^{1020212121201} is an apocalyptic number.

It is an amenable number.

1020212121201 is a deficient number, since it is larger than the sum of its proper divisors (699586611087).

1020212121201 is a wasteful number, since it uses less digits than its factorization.

1020212121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20970.

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

Adding to 1020212121201 its reverse (1021212120201), we get a palindrome (2041424241402).

It can be divided in two parts, 102021 and 2121201, that added together give a palindrome (2223222).

The spelling of 1020212121201 in words is "one trillion, twenty billion, two hundred twelve million, one hundred twenty-one thousand, two hundred one".