20121202211110 has 256 divisors, whose sum is σ = 51211251302400. Its totient is φ = 5481933811200.

The previous prime is 20121202211101. The next prime is 20121202211113. The reversal of 20121202211110 is 1111220212102.

It is a super-4 number, since 4×20121202211110⁴ (a number of 54 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121202211113) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 439506201 + ... + 439551979.

It is an arithmetic number, because the mean of its divisors is an integer number (200043950400).

Almost surely, 2^{20121202211110} is an apocalyptic number.

20121202211110 is an abundant number, since it is smaller than the sum of its proper divisors (31090049091290).

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

20121202211110 is a wasteful number, since it uses less digits than its factorization.

20121202211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48147.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20121202211110 its reverse (1111220212102), we get a palindrome (21232422423212).

The spelling of 20121202211110 in words is "twenty trillion, one hundred twenty-one billion, two hundred two million, two hundred eleven thousand, one hundred ten".