1121210121010 has 64 divisors (see below), whose sum is σ = 2444939562240. Its totient is φ = 361391247360.

The previous prime is 1121210120941. The next prime is 1121210121029. The reversal of 1121210121010 is 101210121211.

It is a happy number.

It is a super-2 number, since 2×1121210121010² (a number of 25 digits) contains 22 as substring.

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, 513661 + ... + 1583119.

It is an arithmetic number, because the mean of its divisors is an integer number (38202180660).

Almost surely, 2^{1121210121010} is an apocalyptic number.

1121210121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121210121010 is an abundant number, since it is smaller than the sum of its proper divisors (1323729441230).

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

1121210121010 is a wasteful number, since it uses less digits than its factorization.

1121210121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070371.

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

Adding to 1121210121010 its reverse (101210121211), we get a palindrome (1222420242221).

The spelling of 1121210121010 in words is "one trillion, one hundred twenty-one billion, two hundred ten million, one hundred twenty-one thousand, ten".