1011211230210 has 64 divisors (see below), whose sum is σ = 2442409200000. Its totient is φ = 267937431552.

The previous prime is 1011211230143. The next prime is 1011211230223. The reversal of 1011211230210 is 120321121101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1011211230210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4433541 + ... + 4656039.

It is an arithmetic number, because the mean of its divisors is an integer number (38162643750).

Almost surely, 2^{1011211230210} is an apocalyptic number.

1011211230210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011211230210 is an abundant number, since it is smaller than the sum of its proper divisors (1431197969790).

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

1011211230210 is a wasteful number, since it uses less digits than its factorization.

1011211230210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223475.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1011211230210 its reverse (120321121101), we get a palindrome (1131532351311).

It can be divided in two parts, 1011211 and 230210, that added together give a palindrome (1241421).

The spelling of 1011211230210 in words is "one trillion, eleven billion, two hundred eleven million, two hundred thirty thousand, two hundred ten".