21022011132210 has 192 divisors, whose sum is σ = 63137167801344. Its totient is φ = 4796186112000.

The previous prime is 21022011132209. The next prime is 21022011132211. The reversal of 21022011132210 is 1223111022012.

21022011132210 is a `hidden beast` number, since 2 + 1 + 0 + 220 + 111 + 322 + 10 = 666.

It is an interprime number because it is at equal distance from previous prime (21022011132209) and next prime (21022011132211).

It is a super-2 number, since 2×21022011132210² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21022011132211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 463660662 + ... + 463705998.

It is an arithmetic number, because the mean of its divisors is an integer number (328839415632).

Almost surely, 2^{21022011132210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21022011132210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31568583900672).

21022011132210 is an abundant number, since it is smaller than the sum of its proper divisors (42115156669134).

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

21022011132210 is a wasteful number, since it uses less digits than its factorization.

21022011132210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72929 (or 72926 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21022011132210 its reverse (1223111022012), we get a palindrome (22245122154222).

The spelling of 21022011132210 in words is "twenty-one trillion, twenty-two billion, eleven million, one hundred thirty-two thousand, two hundred ten".