211342213154404 has 24 divisors (see below), whose sum is σ = 370245551964120. Its totient is φ = 105557811216384.

The previous prime is 211342213154399. The next prime is 211342213154407. The reversal of 211342213154404 is 404451312243112.

It can be written as a sum of positive squares in 4 ways, for example, as 60296933312100 + 151045279842304 = 7765110^2 + 12290048^2 .

It is a super-2 number, since 2×211342213154404² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211342213154407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15208452 + ... + 25573060.

It is an arithmetic number, because the mean of its divisors is an integer number (15426897998505).

Almost surely, 2^{211342213154404} is an apocalyptic number.

It is an amenable number.

211342213154404 is a deficient number, since it is larger than the sum of its proper divisors (158903338809716).

211342213154404 is a wasteful number, since it uses less digits than its factorization.

211342213154404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10370079 (or 10370077 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 211342213154404 its reverse (404451312243112), we get a palindrome (615793525397516).

The spelling of 211342213154404 in words is "two hundred eleven trillion, three hundred forty-two billion, two hundred thirteen million, one hundred fifty-four thousand, four hundred four".