402212043220 has 48 divisors (see below), whose sum is σ = 949166628480. Its totient is φ = 142052144256.

The previous prime is 402212043217. The next prime is 402212043223. The reversal of 402212043220 is 22340212204.

It is an interprime number because it is at equal distance from previous prime (402212043217) and next prime (402212043223).

It is a super-2 number, since 2×402212043220² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402212043191 and 402212043200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402212043223) 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, 33623790 + ... + 33635749.

It is an arithmetic number, because the mean of its divisors is an integer number (19774304760).

Almost surely, 2^402212043220 is an apocalyptic number.

It is an amenable number.

402212043220 is an abundant number, since it is smaller than the sum of its proper divisors (546954585260).

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

402212043220 is a wasteful number, since it uses less digits than its factorization.

402212043220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67259584 (or 67259582 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 402212043220 its reverse (22340212204), we get a palindrome (424552255424).

The spelling of 402212043220 in words is "four hundred two billion, two hundred twelve million, forty-three thousand, two hundred twenty".