1020212002021 has 16 divisors (see below), whose sum is σ = 1054238721984. Its totient is φ = 986746610304.

The previous prime is 1020212001997. The next prime is 1020212002039. The reversal of 1020212002021 is 1202002120201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1020212002021 - 2²³ = 1020203613413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020212001992 and 1020212002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020212002421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7621350 + ... + 7754056.

It is an arithmetic number, because the mean of its divisors is an integer number (65889920124).

Almost surely, 2^{1020212002021} is an apocalyptic number.

It is an amenable number.

1020212002021 is a deficient number, since it is larger than the sum of its proper divisors (34026719963).

1020212002021 is a wasteful number, since it uses less digits than its factorization.

1020212002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134820.

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

Adding to 1020212002021 its reverse (1202002120201), we get a palindrome (2222214122222).

The spelling of 1020212002021 in words is "one trillion, twenty billion, two hundred twelve million, two thousand, twenty-one".