10212211020220 has 96 divisors (see below), whose sum is σ = 23941349752320. Its totient is φ = 3626862946560.

The previous prime is 10212211020181. The next prime is 10212211020259. The reversal of 10212211020220 is 2202011221201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10212211020181) and next prime (10212211020259).

It is a junction number, because it is equal to n+sod(n) for n = 10212211020194 and 10212211020203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131767441 + ... + 131844919.

It is an arithmetic number, because the mean of its divisors is an integer number (249389059920).

Almost surely, 2^{10212211020220} is an apocalyptic number.

10212211020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10212211020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11970674876160).

10212211020220 is an abundant number, since it is smaller than the sum of its proper divisors (13729138732100).

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

10212211020220 is a wasteful number, since it uses less digits than its factorization.

10212211020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91475 (or 91473 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10212211020220 its reverse (2202011221201), we get a palindrome (12414222241421).

The spelling of 10212211020220 in words is "ten trillion, two hundred twelve billion, two hundred eleven million, twenty thousand, two hundred twenty".