1012002122021 has 12 divisors (see below), whose sum is σ = 1136033336256. Its totient is φ = 900427414920.

The previous prime is 1012002121987. The next prime is 1012002122029. The reversal of 1012002122021 is 1202212002101.

It is not a de Polignac number, because 1012002122021 - 2¹⁴ = 1012002105637 is a prime.

It is a super-3 number, since 3×1012002122021³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012002121987 and 1012002122005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012002122029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88969355 + ... + 88980728.

It is an arithmetic number, because the mean of its divisors is an integer number (94669444688).

Almost surely, 2^{1012002122021} is an apocalyptic number.

1012002122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012002122021 is a deficient number, since it is larger than the sum of its proper divisors (124031214235).

1012002122021 is a wasteful number, since it uses less digits than its factorization.

1012002122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177950152 (or 177950141 counting only the distinct ones).

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

Adding to 1012002122021 its reverse (1202212002101), we get a palindrome (2214214124122).

The spelling of 1012002122021 in words is "one trillion, twelve billion, two million, one hundred twenty-two thousand, twenty-one".