1021211211010 has 64 divisors (see below), whose sum is σ = 1926310118400. Its totient is φ = 389270149632.

The previous prime is 1021211210933. The next prime is 1021211211011. The reversal of 1021211211010 is 101121121201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1021211211011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86296054 + ... + 86307886.

It is an arithmetic number, because the mean of its divisors is an integer number (30098595600).

Almost surely, 2^{1021211211010} is an apocalyptic number.

1021211211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021211211010 is a deficient number, since it is larger than the sum of its proper divisors (905098907390).

1021211211010 is a wasteful number, since it uses less digits than its factorization.

1021211211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15715.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1021211211010 its reverse (101121121201), we get a palindrome (1122332332211).

It can be divided in two parts, 102121 and 1211010, that added together give a palindrome (1313131).

The spelling of 1021211211010 in words is "one trillion, twenty-one billion, two hundred eleven million, two hundred eleven thousand, ten".