1020220002021 has 16 divisors (see below), whose sum is σ = 1483974462528. Its totient is φ = 618307612800.

The previous prime is 1020220002007. The next prime is 1020220002029. The reversal of 1020220002021 is 1202000220201.

It is not a de Polignac number, because 1020220002021 - 2¹⁴ = 1020219985637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020220001988 and 1020220002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020220002029) 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, 3850161 + ... + 4106601.

It is an arithmetic number, because the mean of its divisors is an integer number (92748403908).

Almost surely, 2^{1020220002021} is an apocalyptic number.

1020220002021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1020220002021 is a deficient number, since it is larger than the sum of its proper divisors (463754460507).

1020220002021 is a wasteful number, since it uses less digits than its factorization.

1020220002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377012.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1020220002021 its reverse (1202000220201), we get a palindrome (2222220222222).

The spelling of 1020220002021 in words is "one trillion, twenty billion, two hundred twenty million, two thousand, twenty-one".