21101120201022 has 128 divisors (see below), whose sum is σ = 48732425280000. Its totient is φ = 6046081155072.

The previous prime is 21101120200981. The next prime is 21101120201023. The reversal of 21101120201022 is 22010202110112.

It is a super-3 number, since 3×21101120201022³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21101120200992 and 21101120201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101120201023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36752254 + ... + 37321982.

It is an arithmetic number, because the mean of its divisors is an integer number (380722072500).

Almost surely, 2^{21101120201022} is an apocalyptic number.

21101120201022 is an abundant number, since it is smaller than the sum of its proper divisors (27631305078978).

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

21101120201022 is a wasteful number, since it uses less digits than its factorization.

21101120201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570458.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21101120201022 its reverse (22010202110112), we get a palindrome (43111322311134).

The spelling of 21101120201022 in words is "twenty-one trillion, one hundred one billion, one hundred twenty million, two hundred one thousand, twenty-two".