21120202201004 has 6 divisors (see below), whose sum is σ = 36960353851764. Its totient is φ = 10560101100500.

The previous prime is 21120202200947. The next prime is 21120202201027. The reversal of 21120202201004 is 40010220202112.

It is a super-2 number, since 2×21120202201004² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2640025275122 + ... + 2640025275129.

It is an arithmetic number, because the mean of its divisors is an integer number (6160058975294).

Almost surely, 2^{21120202201004} is an apocalyptic number.

It is an amenable number.

21120202201004 is a deficient number, since it is larger than the sum of its proper divisors (15840151650760).

21120202201004 is a wasteful number, since it uses less digits than its factorization.

21120202201004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280050550255 (or 5280050550253 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21120202201004 its reverse (40010220202112), we get a palindrome (61130422403116).

The spelling of 21120202201004 in words is "twenty-one trillion, one hundred twenty billion, two hundred two million, two hundred one thousand, four".