4021612020402 has 32 divisors (see below), whose sum is σ = 8167140900864. Its totient is φ = 1319903494800.

The previous prime is 4021612020401. The next prime is 4021612020427. The reversal of 4021612020402 is 2040202161204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4021612020401) 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, 1520874 + ... + 3218117.

It is an arithmetic number, because the mean of its divisors is an integer number (255223153152).

Almost surely, 2^{4021612020402} is an apocalyptic number.

4021612020402 is an abundant number, since it is smaller than the sum of its proper divisors (4145528880462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021612020402 is a wasteful number, since it uses less digits than its factorization.

4021612020402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4741174.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 4021612020402 its reverse (2040202161204), we get a palindrome (6061814181606).

The spelling of 4021612020402 in words is "four trillion, twenty-one billion, six hundred twelve million, twenty thousand, four hundred two".