10111211021210 has 64 divisors (see below), whose sum is σ = 19795886762400. Its totient is φ = 3696101452800.

The previous prime is 10111211021207. The next prime is 10111211021269. The reversal of 10111211021210 is 1212011211101.

It can be written as a sum of positive squares in 16 ways, for example, as 416413380601 + 9694797640609 = 645301^2 + 3113647^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214428716 + ... + 214475864.

Almost surely, 2^{10111211021210} is an apocalyptic number.

10111211021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10111211021210 is a deficient number, since it is larger than the sum of its proper divisors (9684675741190).

10111211021210 is a wasteful number, since it uses less digits than its factorization.

10111211021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63603.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10111211021210 its reverse (1212011211101), we get a palindrome (11323222232311).

The spelling of 10111211021210 in words is "ten trillion, one hundred eleven billion, two hundred eleven million, twenty-one thousand, two hundred ten".