1000000021101 has 16 divisors (see below), whose sum is σ = 1473145812864. Its totient is φ = 600170514944.

The previous prime is 1000000021073. The next prime is 1000000021129. The reversal of 1000000021101 is 1011200000001.

1000000021101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1000000021073) and next prime (1000000021129).

It is a cyclic number.

It is not a de Polignac number, because 1000000021101 - 2⁷ = 1000000020973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000000021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000000021001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426256296 + ... + 426258641.

It is an arithmetic number, because the mean of its divisors is an integer number (92071613304).

Almost surely, 2^{1000000021101} is an apocalyptic number.

It is an amenable number.

1000000021101 is a deficient number, since it is larger than the sum of its proper divisors (473145791763).

1000000021101 is a wasteful number, since it uses less digits than its factorization.

1000000021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852514980.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 1000000021101 its reverse (1011200000001), we get a palindrome (2011200021102).

The spelling of 1000000021101 in words is "one trillion, twenty-one thousand, one hundred one".