1011121211010 has 64 divisors (see below), whose sum is σ = 2449851651072. Its totient is φ = 267070324416.

The previous prime is 1011121210969. The next prime is 1011121211021. The reversal of 1011121211010 is 101121211101.

It is a super-2 number, since 2×1011121211010² (a number of 25 digits) contains 22 as substring.

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, 1061257 + ... + 1774403.

It is an arithmetic number, because the mean of its divisors is an integer number (38278932048).

Almost surely, 2^{1011121211010} is an apocalyptic number.

1011121211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011121211010 is an abundant number, since it is smaller than the sum of its proper divisors (1438730440062).

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

1011121211010 is a wasteful number, since it uses less digits than its factorization.

1011121211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713607.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1011121211010 its reverse (101121211101), we get a palindrome (1112242422111).

Subtracting from 1011121211010 its reverse (101121211101), we obtain a palindrome (909999999909).

The spelling of 1011121211010 in words is "one trillion, eleven billion, one hundred twenty-one million, two hundred eleven thousand, ten".