1021211440410 has 64 divisors (see below), whose sum is σ = 2810161170432. Its totient is φ = 232659418176.

The previous prime is 1021211440397. The next prime is 1021211440477. The reversal of 1021211440410 is 140441121201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7855582 + ... + 7984521.

It is an arithmetic number, because the mean of its divisors is an integer number (43908768288).

Almost surely, 2^{1021211440410} is an apocalyptic number.

1021211440410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021211440410 is an abundant number, since it is smaller than the sum of its proper divisors (1788949730022).

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

1021211440410 is a wasteful number, since it uses less digits than its factorization.

1021211440410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15840427.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1021211440410 its reverse (140441121201), we get a palindrome (1161652561611).

The spelling of 1021211440410 in words is "one trillion, twenty-one billion, two hundred eleven million, four hundred forty thousand, four hundred ten".