1020212210021 has 8 divisors (see below), whose sum is σ = 1053180939264. Its totient is φ = 987247146960.

The previous prime is 1020212209999. The next prime is 1020212210023. The reversal of 1020212210021 is 1200122120201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020212210021 - 2¹⁰ = 1020212208997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1020212209978 and 1020212210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020212210023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345341 + ... + 1469586.

It is an arithmetic number, because the mean of its divisors is an integer number (131647617408).

Almost surely, 2^{1020212210021} is an apocalyptic number.

It is an amenable number.

1020212210021 is a deficient number, since it is larger than the sum of its proper divisors (32968729243).

1020212210021 is a wasteful number, since it uses less digits than its factorization.

1020212210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833091.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020212210021 its reverse (1200122120201), we get a palindrome (2220334330222).

The spelling of 1020212210021 in words is "one trillion, twenty billion, two hundred twelve million, two hundred ten thousand, twenty-one".