1011211211000 has 64 divisors (see below), whose sum is σ = 2384866298880. Its totient is φ = 401299516800.

The previous prime is 1011211210979. The next prime is 1011211211011. The reversal of 1011211211000 is 1121121101.

1011211211000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1011211211000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3854147 + ... + 4108146.

It is an arithmetic number, because the mean of its divisors is an integer number (37263535920).

Almost surely, 2^{1011211211000} is an apocalyptic number.

1011211211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011211211000 is an abundant number, since it is smaller than the sum of its proper divisors (1373655087880).

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

1011211211000 is a wasteful number, since it uses less digits than its factorization.

1011211211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7962441 (or 7962427 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011211211000 its reverse (1121121101), we get a palindrome (1012332332101).

The spelling of 1011211211000 in words is "one trillion, eleven billion, two hundred eleven million, two hundred eleven thousand".