1121212011010 has 64 divisors (see below), whose sum is σ = 2485966033152. Its totient is φ = 354552235776.

The previous prime is 1121212011001. The next prime is 1121212011067. The reversal of 1121212011010 is 101102121211.

It is a happy number.

It is a super-2 number, since 2×1121212011010² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 595957 + ... + 1611703.

It is an arithmetic number, because the mean of its divisors is an integer number (38843219268).

Almost surely, 2^{1121212011010} is an apocalyptic number.

1121212011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121212011010 is an abundant number, since it is smaller than the sum of its proper divisors (1364754022142).

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

1121212011010 is a wasteful number, since it uses less digits than its factorization.

1121212011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016987.

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

Adding to 1121212011010 its reverse (101102121211), we get a palindrome (1222314132221).

The spelling of 1121212011010 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, eleven thousand, ten".