1021211212010 has 64 divisors (see below), whose sum is σ = 2038506991488. Its totient is φ = 365199840000.

The previous prime is 1021211211973. The next prime is 1021211212027. The reversal of 1021211212010 is 102121121201.

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, 60992240 + ... + 61008980.

It is an arithmetic number, because the mean of its divisors is an integer number (31851671742).

Almost surely, 2^{1021211212010} is an apocalyptic number.

1021211212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021211212010 is a deficient number, since it is larger than the sum of its proper divisors (1017295779478).

1021211212010 is a wasteful number, since it uses less digits than its factorization.

1021211212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25911.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021211212010 its reverse (102121121201), we get a palindrome (1123332333211).

It can be divided in two parts, 102121 and 1212010, that added together give a palindrome (1314131).

The spelling of 1021211212010 in words is "one trillion, twenty-one billion, two hundred eleven million, two hundred twelve thousand, ten".