10212002121111 has 32 divisors (see below), whose sum is σ = 15570174796800. Its totient is φ = 5832044789760.

The previous prime is 10212002121089. The next prime is 10212002121121. The reversal of 10212002121111 is 11112120021201.

It is a happy number.

It is not a de Polignac number, because 10212002121111 - 2¹¹ = 10212002119063 is a prime.

It is a super-2 number, since 2×10212002121111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212002121121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 569825431 + ... + 569843351.

It is an arithmetic number, because the mean of its divisors is an integer number (486567962400).

Almost surely, 2^{10212002121111} is an apocalyptic number.

10212002121111 is a deficient number, since it is larger than the sum of its proper divisors (5358172675689).

10212002121111 is a wasteful number, since it uses less digits than its factorization.

10212002121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32159.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10212002121111 its reverse (11112120021201), we get a palindrome (21324122142312).

The spelling of 10212002121111 in words is "ten trillion, two hundred twelve billion, two million, one hundred twenty-one thousand, one hundred eleven".