2218201838402 has 32 divisors (see below), whose sum is σ = 3636658226880. Its totient is φ = 1006365971520.

The previous prime is 2218201838389. The next prime is 2218201838407. The reversal of 2218201838402 is 2048381028122.

It is a self number, because there is not a number n which added to its sum of digits gives 2218201838402.

It is not an unprimeable number, because it can be changed into a prime (2218201838407) 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, 27005948 + ... + 27087960.

It is an arithmetic number, because the mean of its divisors is an integer number (113645569590).

Almost surely, 2^{2218201838402} is an apocalyptic number.

2218201838402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2218201838402 is a deficient number, since it is larger than the sum of its proper divisors (1418456388478).

2218201838402 is a wasteful number, since it uses less digits than its factorization.

2218201838402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84338.

The product of its (nonzero) digits is 98304, while the sum is 41.

The spelling of 2218201838402 in words is "two trillion, two hundred eighteen billion, two hundred one million, eight hundred thirty-eight thousand, four hundred two".